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Question 1
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A 30-year-old woman presents with deteriorating hearing during pregnancy. There is no known family history of hearing loss. Upon examination, the tympanic membrane appears intact and pure tone audiometry indicates a conductive hearing loss with a Carhart notch.
What is the most probable location of the issue?Your Answer: Stapes
Explanation:Understanding Otosclerosis: Diagnosis and Treatment Options
Otosclerosis is a common autosomal dominant disorder that causes a conductive hearing loss, which typically worsens during pregnancy. The condition is caused by the fixation of the stapes bone in the ear, and it exhibits incomplete penetrance, meaning it can skip generations, and there may not be a positive family history of the condition.
Diagnosis of otosclerosis is typically made through examination findings and audiometry results. The Carhart notch, a dip seen on bone conduction audiometry, is a sign that is classically associated with otosclerosis. However, the tympanic membrane is unlikely to be the site of abnormality as it is mentioned that the tympanic membrane is intact on examination.
Treatment options for otosclerosis include amplification with hearing aids and medical treatment with sodium fluoride, which slows progression. Surgery, such as stapedectomy or stapedotomy, is becoming more popular and effective.
It is important to understand the diagnosis and treatment options for otosclerosis to effectively manage the condition and improve quality of life for those affected.
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This question is part of the following fields:
- ENT
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Question 2
Correct
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A 49-year-old woman presents to her doctor with complaints of constipation and back pain for the past 6 months. Her husband, who accompanies her, also mentions that she has been acting strangely during this time. On examination, a nodule is found in the patient's neck, just left of the midline. Further investigations reveal an elevated parathyroid hormone level and abnormal levels of various electrolytes. The patient undergoes surgery and subsequently develops hoarseness. What is the most probable cause of the patient's voice change?
Your Answer: Damage to the recurrent laryngeal nerve
Explanation:Effects of Nerve Damage on Laryngeal Function
Hypercalcaemia and Recurrent Laryngeal Nerve Damage
Hypercalcaemia, often caused by parathyroid adenoma, can lead to transection of the recurrent laryngeal nerve during surgical removal of the adenoma. This can result in hoarseness.External Laryngeal Nerve Damage
Transection of the external laryngeal nerve can affect the cricothyroid muscle, leading to difficulty in increasing the pitch of one’s voice.Internal Laryngeal Nerve Damage
Damage to the internal laryngeal nerve can impair sensation in the pharynx above the vocal cords, but it does not cause hoarseness.Spinal Accessory Nerve Damage
Damage to the spinal accessory nerve can impair shoulder shrugging and head rotation.Vagus Nerve Damage
Damage to the vagus nerve can cause widespread effects involving autonomic dysfunction. -
This question is part of the following fields:
- ENT
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Question 3
Correct
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A 45-year-old man visits his GP complaining of a lump under his chin that causes him pain and swelling, especially after eating a big meal. The facial nerve appears to be functioning normally. Upon examination, there is a tender swelling in the submandibular triangle.
What is the most probable diagnosis?Your Answer: Sialolithiasis
Explanation:Differential Diagnosis of Submandibular Swelling: Understanding the Causes
Submandibular swelling can be caused by various conditions, and it is important to understand the differential diagnosis to provide appropriate treatment. One of the most common causes is sialolithiasis, which is the formation of stones within the salivary glands. This condition obstructs the salivary ducts and can lead to infection, resulting in pain and swelling after eating. Sialolithiasis is more common in men over the age of 40 and typically affects the submandibular gland.
Sjögren syndrome is an autoimmune condition that causes dry mouth, dry eyes, and swelling of the salivary glands, usually bilaterally. However, unilateral acute pain and swelling after eating are more typical of a salivary stone, rather than Sjögren syndrome.
Pleomorphic adenomas are benign tumors that usually present as a painless lump, slowly enlarging over time. They do not typically cause acute pain and swelling.
Warthin’s tumor is another slow-growing lump that is commonly found in the tail of the parotid gland. Unlike sialolithiasis, it does not cause pain.
Adenoid cystic carcinoma is a malignant tumor that presents as a slowly enlarging mass over the parotid area. It does not typically cause pain, but if left unchecked, it can invade local structures such as the facial nerve.
In conclusion, understanding the differential diagnosis of submandibular swelling is crucial for proper diagnosis and treatment. Sialolithiasis, Sjögren syndrome, pleomorphic adenomas, Warthin’s tumor, and adenoid cystic carcinoma are all potential causes, and each requires a different approach to management.
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This question is part of the following fields:
- ENT
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Question 4
Correct
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A 50-year-old woman comes to her GP complaining of a sore throat, coryzal symptoms, cough, feeling feverish and general malaise for the past week. She reports that she is eating and drinking well. Upon examination, her temperature is 37.1°C and her chest is clear. Her tonsils are inflamed, but there is no exudate. She has no significant medical history except for carpal tunnel syndrome. Based on her Fever PAIN score, what is the most suitable course of action?
Your Answer: Safety net and review in 1 week if no improvement
Explanation:Using the FeverPAIN Score to Determine Antibiotic Use in Pharyngitis
Pharyngitis, or sore throat, is a common reason for patients to seek medical attention. However, not all cases of pharyngitis require antibiotics. In fact, inappropriate antibiotic use can lead to antibiotic resistance and other negative outcomes. To help providers determine which patients with pharyngitis have streptococcal pharyngitis, the FeverPAIN Score was developed.
The FeverPAIN Score assesses five factors: fever, presence of pus, how quickly symptoms attenuate, inflamed tonsils, and cough. A score of 0-1 is associated with a low likelihood of streptococcal infection, while a score of 4 or more is associated with a high likelihood. For patients with a score of 2 or 3, delayed antibiotic use may be appropriate.
In the case of a woman with inflamed tonsils, her FeverPAIN Score indicates that antibiotics are not necessary. However, it is important to safety net patients and review their condition in one week if there is no improvement. By using the FeverPAIN Score, providers can make informed decisions about antibiotic use in pharyngitis and help reduce the risk of antibiotic resistance.
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This question is part of the following fields:
- ENT
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Question 5
Correct
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A 30-year-old man visits his GP complaining of ear pain, itch and pus-like discharge that has been present for 3 days. He reports no fever and no hearing loss. The patient has a history of psoriasis. On examination, the doctor observes a raised red lesion on the ear with thick, silvery-white adherent scales. The tympanic membrane is intact and there is no visible mucous. The external auditory canal shows mild erythema and swelling. There is no palpable lymphadenopathy. What is the most appropriate treatment for this man's acute ear condition?
Your Answer: Topical antibiotics
Explanation:Treatment Options for Otitis Externa
Otitis externa, commonly known as swimmer’s ear, is an infection of the outer ear canal. It can be caused by breaks in the skin, such as those seen in psoriasis. Treatment options depend on the severity of the infection and may include topical antibiotics, topical steroids, intravenous antibiotics, oral antibiotics, or topical antifungal agents.
Topical Antibiotics
The first line of treatment for otitis externa is topical antibacterial therapy. This may include 2% acetic acid, neomycin, or aminoglycosides. If swelling is severe, a wick may be inserted after cleaning the ear canal. Steroids may also be added to the ear drops to decrease inflammation and swelling, but their effectiveness is not always clear. Drops should be given for three days beyond the cessation of symptoms.Topical Steroids
In addition to antibiotics, steroids may be added to ear drops to reduce inflammation and swelling. However, they should be used in conjunction with antibiotics.Intravenous Antibiotics
If the infection is severe or unresponsive to oral antibiotics, intravenous antibiotics may be necessary. Topical cultures may be recommended to guide treatment in severe cases.Oral Antibiotics
Oral antibiotics are rarely needed for otitis externa but may be used if the infection is persistent, if associated otitis media is present, or if there is local or systemic spread. Signs of systemic spread include a temperature over 38.3 °C, severe initial pain, or lymphadenopathy.Topical Antifungal Agents
Fungal infections may present with white to off-white discharge or black, grey, bluish-green, or yellow discharge. Aspergillus spp. may be identified by small black or white conidiophores on white hyphae. Suspected fungal otitis externa can be treated with topical antifungal agents such as clotrimazole. -
This question is part of the following fields:
- ENT
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Question 6
Incorrect
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A 6-year-old asylum seeker from Africa presents to the Surgical Outpatient Clinic with a mass on the right side of his neck that has been growing in size. On examination, a mass is found on the side of the neck, behind the sternocleidomastoid muscle, which transilluminates brightly. What is the most probable diagnosis?
Your Answer: Branchial cyst
Correct Answer: Cystic hygroma
Explanation:Differentiating Neck Abnormalities: Cystic Hygroma, Laryngocoele, Cervical Rib, Branchial Cyst, and Enlarged Lymph Node
Neck abnormalities can be challenging to differentiate, but understanding their characteristics can aid in proper diagnosis. Cystic hygromas are lymphatic abnormalities that are commonly found in the posterior triangle of the neck and transilluminate. They may not be noticeable at birth but typically grow as the child grows. Laryngoceles are abnormal cystic dilatations of the saccule or appendix of the laryngeal ventricle, which communicate with the lumen of the larynx and are filled with air. They are usually benign but can cause airway obstruction. Cervical ribs are extra ribs that arise from the seventh cervical vertebra and are located above the first rib. They do not transilluminate. Branchial cysts are remnants of the second branchial cleft and occur along the anterior border of the sternocleidomastoid, most commonly at the junction of the lower and middle thirds of the muscle. They do not transilluminate. Enlarged lymph nodes are usually secondary to an infection and settle to normal size after six to eight weeks. Understanding the characteristics of these neck abnormalities can aid in proper diagnosis and treatment.
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This question is part of the following fields:
- ENT
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Question 7
Incorrect
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A 55-year-old man with advanced cancer of the stomach presents with hoarseness. During the physical examination, the physician notes enlarged deep cervical lymph nodes. What is the cause of the hoarse voice in this patient?
Your Answer: Internal branch of the superior laryngeal nerve
Correct Answer: Recurrent laryngeal branch of the vagus
Explanation:The Role of Nerves in Voice Production
The human voice is a complex system that involves the coordination of various muscles and nerves. One of the most important nerves involved in voice production is the recurrent laryngeal branch of the vagus. Damage to this nerve can cause hoarseness, as it innervates all the muscles of the larynx. The left recurrent laryngeal nerve is more commonly affected due to its longer course and proximity to mediastinal tumors.
The internal and external branches of the superior laryngeal nerve also play a role in voice production. They innervate the cricothyroid muscle and the inferior pharyngeal constrictor, as well as provide secretomotor fibers to mucosal glands of the larynx above the vocal folds. However, damage to these nerves would not cause hoarseness.
Lastly, the pharyngeal branch of the glossopharyngeal nerve provides sensory innervation to the pharynx, but does not directly affect voice production. Understanding the role of these nerves can help diagnose and treat voice disorders.
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This question is part of the following fields:
- ENT
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Question 8
Correct
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A 28-year-old patient presents with a lump in the neck. On examination, there is a 2-cm smooth, round lump at the anterior border of the upper third of the sternocleidomastoid muscle.
Which of the following is the most likely diagnosis?Your Answer: Branchial cyst
Explanation:Common Neck Swellings and Their Characteristics
There are several types of neck swellings that can occur, each with their own unique characteristics. Here are some common neck swellings and their descriptions:
1. Branchial cyst – This type of cyst typically appears as a painless, smooth swelling in young adults. The cause is unknown, but surgical removal is usually recommended to prevent the development of an abscess.
2. Goitre – A goitre, or thyroid lump, is a swelling that rises on swallowing and is usually located in the midline of the neck.
3. Acute parotitis – This condition presents as a painful swelling in front of the ear.
4. Cystic hygroma – These benign cystic structures are typically found in infants and are located in the posterior triangle of the neck.
5. Thyroglossal cyst – This type of cyst is located in the midline of the neck and moves as the tongue protrudes.
It is important to seek medical attention if you notice any unusual swelling in your neck, as some of these conditions may require treatment.
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This question is part of the following fields:
- ENT
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Question 9
Incorrect
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A 42-year-old man is referred to an otolaryngologist with vertigo and hearing loss. A magnetic resonance imaging (MRI) scan of the cranial region reveals a tumour at the cerebellopontine angle. A working diagnosis of acoustic neuroma is made. In light of the progressive symptoms, the surgeon plans to remove the tumour.
With regard to the vestibulocochlear nerve, which of the following is correct?Your Answer: The vestibulocochlear nerve enters the brainstem at the pontomedullary junction, medial to the facial nerve
Correct Answer: Vestibular fibres pass to the vestibular nuclear complex, located in the floor of the fourth ventricle
Explanation:Anatomy of the Vestibulocochlear Nerve
The vestibulocochlear nerve, also known as the eighth cranial nerve, is responsible for carrying special sensory afferent fibers from the inner ear. It is composed of two portions: the vestibular nerve and the cochlear nerve. The vestibular fibers pass to the vestibular nuclear complex, located in the floor of the fourth ventricle, while the cochlear fibers pass to the cochlear nuclear complex, located across the junction between the pons and medulla.
Acoustic neuromas, which are tumors that commonly arise from the vestibular portion of the nerve, are also known as vestibular schwannomas. The efferent nerve supply to the tensor tympani, a muscle in the middle ear, is provided by the mandibular branch of the fifth cranial nerve.
The vestibulocochlear nerve enters the brainstem at the pontomedullary junction, lateral to the facial nerve. It then passes into the temporal bone via the internal auditory meatus, along with the facial nerve. It does not exit the cranium through the jugular foramen, which is where the ninth, tenth, and eleventh cranial nerves exit. Understanding the anatomy of the vestibulocochlear nerve is important in diagnosing and treating disorders related to hearing and balance.
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This question is part of the following fields:
- ENT
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Question 10
Incorrect
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A 12-year-old girl presents to the General Practitioner with severe right ear pain, swelling, and itching. Her mother reports that it all started after her daughter began swimming lessons two months ago. During examination, the clinician notes tenderness when pulling the right ear upwards. Otoscopy is challenging due to the painful, swollen ear canal and white discharge. Additionally, the girl has tender cervical lymph nodes on the right side below the ear and experiences pain when moving her jaw sideways. She has a mild fever (38.3 °C), but the rest of the examination is unremarkable. What is the most appropriate management for this condition?
Your Answer: Oral aminoglycosides
Correct Answer: Topical acetic acid 2% spray (with wick placement) and oral antibiotics
Explanation:The recommended treatment for this patient’s severe otitis externa involves a combination of topical acetic acid 2% spray with wick placement and oral antibiotics. The use of wick placement is necessary due to the swelling in the ear canal, which can hinder the effectiveness of the topical solution. Oral antibiotics are necessary in cases where the infection has spread to adjacent areas, as evidenced by the patient’s tender cervical lymphadenopathy. Flucloxacillin or clarithromycin are commonly used for severe cases. Cleaning and irrigation of the ear canal may be performed under otoscope guidance to remove debris and promote better absorption of topical medication. Oral aminoglycosides are effective but should only be used if the tympanic membrane is intact. NSAIDs can provide symptomatic relief but are not sufficient for treating severe otitis externa. While topical acetic acid 2% spray is a first-line treatment for mild cases, a combination of topical therapy and oral antibiotics is necessary for severe cases.
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This question is part of the following fields:
- ENT
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Question 11
Incorrect
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A 52-year-old woman with a history of intermittent ringing sound in her left ear for the last six months presents to the Ear, Nose and Throat (ENT) Outpatient Department. She describes the ringing sound to be pulsatile in nature. She has no history of fever, hearing loss, trauma or any recent ear infections. Her past medical history includes a diagnosis of multiple sclerosis under remission for the past two years. Clinical examination of the head and neck is unremarkable.
Which is the most appropriate investigation which will help to reach a final diagnosis in this patient?Your Answer: Audiometry
Correct Answer: Computerised tomography (CT) (contrast-enhanced) scan of the temporal bone
Explanation:Investigating Pulsatile Tinnitus in a Patient with Multiple Sclerosis
Pulsatile tinnitus, a constant ringing or humming sound perceived in the absence of actual sound, can be psychologically debilitating to the patient. In a patient with multiple sclerosis, pulsatile tinnitus may be caused by spontaneous spasm of middle ear muscles. The National Institute for Health and Care Excellence (NICE) recommends imaging for all patients with pulsatile tinnitus to identify the underlying cause. In this case, contrast-enhanced CT scanning of the temporal bone is the best investigation to identify middle ear/osseous pathology. Tympanometry and otoscopy can also be valuable initial investigations for suspected middle ear pathologies. Magnetic resonance angiography is not the best investigation in this scenario as the patient’s history suggests a muscular cause of pulsatile tinnitus. Weber’s test is not relevant in this case as the patient does not report any hearing loss.
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This question is part of the following fields:
- ENT
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Question 12
Incorrect
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A 57-year-old man comes to his doctor's office with a complaint of ongoing right ear pain and associated hearing loss for several weeks. He denies any significant discharge from his ear and has not experienced any fevers. He reports feeling pain in his jaw that sometimes clicks. During the examination, the doctor observes cerumen in the right ear and no inflammation. The tympanic membrane appears normal. The patient experiences pain when moving his jaw. What is the probable diagnosis?
Your Answer: Cholesteatoma
Correct Answer: TMJ dysfunction
Explanation:Differential Diagnosis of Ear Pain and Hearing Loss
Temporomandibular Joint Dysfunction as a Likely Cause of Hearing Loss
When infection is ruled out and cerumen is not the culprit, temporomandibular joint (TMJ) dysfunction becomes a probable diagnosis for ear pain and hearing loss. TMJ dysfunction often involves pain that radiates to the ear through the auriculotemporal nerve and crepitus in the jaw. Treatment options for TMJ dysfunction include rest, massage, relaxation techniques, bite guards, NSAIDs, and steroid injections.
Other Possible Causes of Ear Pain and Discharge
Otitis externa, or inflammation of the external auditory canal, typically presents with watery discharge, pain, and itching. Cholesteatoma, a benign tumor that can erode bone and cause cranial nerve symptoms, produces a foul-smelling white discharge and an inflammatory lesion on otoscopy. Mastoiditis, an infection that spreads from the middle ear to the mastoid air cells, causes fever, swelling, and unilateral ear prominence. Acute otitis media, a common childhood infection, results in sudden ear pain and bulging of the tympanic membrane, which may rupture and release purulent discharge.
Conclusion
Ear pain and hearing loss can have various causes, and a thorough evaluation is necessary to determine the underlying condition. While TMJ dysfunction is a possible diagnosis that requires specific management, other conditions such as otitis externa, cholesteatoma, mastoiditis, and acute otitis media should also be considered and treated accordingly.
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This question is part of the following fields:
- ENT
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Question 13
Incorrect
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A 40-year-old farmer visits the General Practitioner (GP) complaining of severe pain in the left parotid area for the past week. The pain is triggered when the patient is eating or about to eat. The GP suspects a parotid duct stone.
Regarding the parotid gland, which of the following statements is accurate?Your Answer: It produces mainly a mucous secretion
Correct Answer: It has secretomotor action via the glossopharyngeal and auriculotemporal nerves
Explanation:The parotid gland is innervated by parasympathetic nerves originating in the inferior salivary nucleus at the lower pons. These nerves travel along the glossopharyngeal and auriculotemporal nerves, and synapse in the otic ganglion before hitch-hiking with the auriculotemporal nerve to reach the gland. Injury to these nerves during parotidectomy can cause Frey syndrome. The gland consists of superficial and deep lobes separated by the neurovascular bundle, and its duct passes around the anterior border of the masseter muscle before piercing the buccinator muscle and exiting opposite the second upper molar tooth. The gland produces mainly serous secretion, which is why salivary stones are rarely found in the parotid gland.
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This question is part of the following fields:
- ENT
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Question 14
Incorrect
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A patient with persistent sinusitis is scheduled for endoscopic surgery to address any blockages in the drainage pathways and perform balloon catheter dilation of the paranasal sinus openings. During the procedure, the surgeon aims to access the middle meatus of the nasal cavity to insert a cannula into the ostia.
Which of the paranasal sinuses empties into the sphenoethmoidal recess?Your Answer: Maxillary sinus
Correct Answer: Sphenoidal sinus
Explanation:Sinus Drainage Pathways in the Nasal Cavity
The nasal cavity contains several sinuses that drain into different areas of the cavity. The sphenoidal sinus drains into the sphenoethmoid recess, which is located posterior and superior to the superior concha. The anterior ethmoidal sinus drains into the middle meatus via the semilunar hiatus, as does the maxillary sinus. The frontal sinus, on the other hand, drains into the infundibulum of the middle meatus. Finally, the middle ethmoidal sinus drains to the ethmoid bulla of the middle meatus. Understanding these drainage pathways is important for diagnosing and treating sinus issues.
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This question is part of the following fields:
- ENT
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Question 15
Incorrect
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A 56-year-old woman presents to the clinic with a complaint of feeling like there is a lump in her throat. She reports an itching sensation, but no pain. The symptoms are intermittent and not related to swallowing solids or liquids, and there is no persistent hoarseness. She also reports feeling anxious and tired. There is no significant family history. She was a heavy smoker between the ages of 22-32 but has since quit smoking and drinking. Her blood profile and thyroid function tests show the following results:
- Haemoglobin: 98 g/l (normal range: 115-165 g/l)
- Mean corpuscular value: 75 fl (normal range: 80-100 fl)
- Thyroid stimulating hormone: 2.2 mU/L (normal range: 0.45-4.1 mU/L)
What is the most appropriate initial investigation for this patient?Your Answer: Barium swallow
Correct Answer: Naso-endoscopy
Explanation:The patient is experiencing globus sensation, but before being discharged, it is important to rule out any serious conditions. Given the patient’s history of smoking and anemia, a naso-endoscopy should be performed as an initial investigation. If the results are clear, the patient can be reassured and discharged. A CT neck is not necessary at this time unless the endoscopy results are inconclusive. A barium swallow would only be appropriate if a tumor was suspected, making it a second-line investigation. An ultrasound of the neck would only be necessary if a specific mass or thyroid issue was suspected, which is not the case here. Globus sensation can typically be diagnosed through a clinical examination and a ridged endoscopy. Overall, the initial investigation should focus on ruling out any serious conditions before considering further tests.
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This question is part of the following fields:
- ENT
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Question 16
Incorrect
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A 62-year-old man comes to his GP complaining of bothersome tinnitus that has been going on for 6 weeks. He reports hearing a ringing noise in his left ear only and experiencing hearing loss on the left side. The noise is intrusive and is causing him to have trouble sleeping at night. He denies experiencing any vertigo, headache, or other neurological symptoms. He has a medical history of hypertension and takes atenolol for it.
Upon examination, his ears appear normal.
What is the best course of action for managing this patient's symptoms?Your Answer: Refer routinely to ENT
Correct Answer: Refer urgently to ENT
Explanation:Unilateral Tinnitus: Red Flags and Treatment Options
Unilateral tinnitus is a rare but concerning symptom that should always warrant urgent referral to an ENT specialist. It may indicate an underlying condition such as acoustic neuroma, cerebellopontine angle tumor, glomus tumor, or Ménière’s disease. Other red flag symptoms include pulsatile tinnitus, tinnitus with significant vertigo or asymmetric hearing loss, tinnitus causing psychological distress, and tinnitus with significant neurological symptoms or signs.
Vestibular retraining, an exercise-based treatment program, can help manage vertigo in patients with tinnitus. However, medication has no direct role in treating tinnitus, although it can be used to alleviate associated symptoms such as anxiety or depression.
It is important to note that there is no conventional or complementary medication that has been proven to have specific tinnitus-ameliorating qualities. In fact, repeatedly trying unsuccessful therapies may worsen tinnitus. Therefore, it is crucial to seek prompt medical attention and follow the recommended treatment plan.
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This question is part of the following fields:
- ENT
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Question 17
Incorrect
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A 68-year-old woman visits her GP complaining of hearing loss and ringing in her ears for the past six months. She experienced this after being hospitalized for two weeks due to a soft tissue infection that was complicated by a bloodstream infection caused by methicillin-resistant Staphylococcus aureus. During her hospital stay, she was treated with flucloxacillin, gentamicin, and vancomycin. The tinnitus is present in both ears, and her ear and neurological examinations are normal. What is the probable underlying cause of this patient's tinnitus?
Your Answer: Ménière’s disease
Correct Answer: Ototoxic medication
Explanation:Differential diagnosis of hearing loss and tinnitus
Gentamicin-induced ototoxicity
A patient presenting with bilateral tinnitus and hearing loss after recent use of gentamicin is likely experiencing ototoxicity from this antibiotic. Gentamicin can damage the vestibular system and cause sensorineural hearing loss.
Bacteraemia and viral labyrinthitis
Bacteraemia, especially from methicillin-resistant S. aureus, would not cause tinnitus. Viral labyrinthitis may cause tinnitus, but it is usually accompanied by severe vertigo and hearing loss.
Hyperlipidaemia and noise-induced hearing loss
Hyperlipidaemia, particularly hypertriglyceridaemia, has been linked to an increased risk of noise-induced hearing loss and tinnitus. A low-cholesterol diet and atorvastatin may help alleviate these symptoms.
Ménière’s disease and betahistine
Ménière’s disease is a disorder of the inner ear characterized by excess endolymph, leading to severe vertigo, hearing loss, and tinnitus. Betahistine is a medication used to manage the symptoms of Ménière’s disease, but there is no cure for this condition.
Otosclerosis and conductive hearing loss
Otosclerosis is a condition that affects the bony ossicles of the ear, leading to conductive hearing loss. It results from abnormal sclerosis of the malleus, incus, and stapes, which are crucial for sound conduction from the outer to the inner ear.
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This question is part of the following fields:
- ENT
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Question 18
Incorrect
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A 64-year-old man is undergoing evaluation for hoarseness that has persisted for 6 weeks. He smokes 25 cigarettes a day and has been experiencing a chronic cough for the past 3 months. He denies any episodes of coughing up blood. During an initial examination, an otolaryngologist observes that the right vocal fold is immobile while speaking.
What is the most probable underlying cause?Your Answer: Cerebrovascular accident involving the left anterior cerebral artery
Correct Answer: Left recurrent laryngeal nerve palsy
Explanation:Differentiating Causes of Left-Sided Vocal Cord Paralysis
Left-sided vocal cord paralysis can be caused by various factors, including nerve damage and stroke. Left recurrent laryngeal nerve palsy is a common cause, resulting in hoarseness due to the vocal cord lying in a paramedian position. This type of nerve damage is often associated with an underlying lung malignancy with mediastinal lymph node involvement. On the other hand, left glossopharyngeal nerve palsy does not affect the larynx, while left superior laryngeal nerve palsy is closely related to the recurrent laryngeal nerve and is also more common on the left side. Cerebrovascular accidents involving the left middle or anterior cerebral artery can also cause vocal cord paralysis, but the history provided does not suggest a stroke. Accurately identifying the cause of left-sided vocal cord paralysis is crucial for appropriate management and treatment.
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This question is part of the following fields:
- ENT
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Question 19
Incorrect
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A 38-year-old male librarian presents with sudden loss of hearing in both ears. There is no ear pain, history of recent upper respiratory tract infection or history of trauma. He has no past medical history of note and does not take any regular prescribed or over-the-counter medications. Tuning fork testing suggests right side sensorineural hearing loss. Examination of the auditory canals and tympanic membranes is unremarkable, as is neurological examination. He is referred to the acute ear, nose and throat (ENT) clinic. Audiometry reveals a 40 db hearing loss in the right ear at multiple frequencies.
Which of the following represents the most appropriate initial management plan?Your Answer: Commence 14 days of oral prednisolone
Correct Answer: Arrange an urgent magnetic resonance (MR) of the brain
Explanation:Management of Sudden Sensorineural Hearing Loss
Sudden sensorineural hearing loss (SSNHL) is a medical emergency that requires urgent evaluation and management. Patients with unexplained sudden hearing loss should be referred to an ENT specialist and offered an MRI scan. A CT scan may also be indicated to rule out stroke, although it is unlikely to cause unilateral hearing loss.
Antiviral medication such as acyclovir is not recommended unless there is evidence of viral infection. Antibiotics are also not indicated unless there is evidence of bacterial infection.
The mainstay of treatment for SSNHL is oral prednisolone, which should be started as soon as possible and continued for 14 days. While the cause of SSNHL is often unknown, it is important to consider a wide range of differential diagnoses, including trauma, drugs, space-occupying lesions, autoimmune inner ear disease, and many other conditions. Prompt evaluation and treatment can improve the chances of recovery and prevent further hearing loss.
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This question is part of the following fields:
- ENT
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Question 20
Incorrect
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A 38-year-old man with a tumour of the left submandibular gland underwent surgery. While operating on the left submandibular gland, the lingual nerve was damaged. What is the most probable postoperative complaint of the patient?
Your Answer: Loss of taste sensation over the posterior third of the left side of the tongue
Correct Answer: Loss of taste sensation over the anterior two-thirds of the left side of the tongue
Explanation:Understanding Lingual Nerve Injury: Effects on Tongue Sensation and Movement
The lingual nerve is a crucial component of the mandibular nerve, responsible for providing sensory innervation to the anterior two-thirds of the tongue and floor of the mouth. It also carries taste sensation fibers from the facial nerve via the chorda tympani special sensory nerves. Injuries to the lingual nerve can result in numbness, dysesthesia, paraesthesiae, and dysgeusia, affecting the anterior two-thirds of the tongue on the same side. Such injuries can occur during invasive dental and surgical procedures.
However, it is important to note that the lingual nerve does not contain a motor component, and thus, it does not affect tongue movement. Deviation of the tongue to either side is not expected in cases of lingual nerve injury.
It is also worth noting that the lingual nerve only supplies sensation to the anterior two-thirds of the tongue. The posterior third of the tongue, on the other hand, is supplied by the glossopharyngeal nerve. Therefore, lingual nerve injury does not affect general sensation in the posterior third of the tongue.
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This question is part of the following fields:
- ENT
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Question 21
Incorrect
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Sophie is a 6-year-old overweight girl brought in by anxious parents who are worried about her loud snoring and frequent interruptions in breathing which have been getting progressively worse. Although she has difficulty getting up from sleep, she does not have any daytime somnolence. However, her parents have been receiving complaints from the school teachers about her disruptive and inattentive behaviour in class. They have done a lot of research on the Internet and are demanding that Sophie has her tonsils removed. On examination, Sophie has a short, thick neck and grade III tonsils, but no other abnormalities.
Which of the following is the next best step in management?Your Answer: Advise the parents to purchase a dental splint for their child to use overnight
Correct Answer: Order an overnight polysomnographic study
Explanation:Childhood Obstructive Sleep Apnoea: Diagnosis and Treatment Options
Childhood obstructive sleep apnoea (OSA) is a pathological condition that requires proper diagnosis and treatment. A polysomnographic study should be performed before any intervention is undertaken, even though adenotonsillectomy is the treatment of choice for childhood OSA. Childhood OSA is characterised by disordered breathing during sleep, which includes both apnoea and hypopnoea. Symptoms such as mouth breathing, abnormal breathing during sleep, poor sleep with frequent awakening or restlessness, nocturnal enuresis, nightmares, difficulty awakening, excessive daytime sleepiness or hyperactivity and behavioural problems are typically observed.
It is important to reassure parents that snoring loudly is normal in children of this age, and their child’s behaviour pattern will improve as they mature. Elective adenotonsillectomy as a day procedure is an option, but a polysomnographic study should be performed first to confirm the diagnosis.
While dental splints have a small role to play in OSA, they are not the ideal treatment option. Intranasal budesonide is an option for mild to moderate OSA, but it is only a temporising measure and not a proven effective long-term treatment. Therefore, it is important to consider all available treatment options and choose the most appropriate one for each individual case.
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- ENT
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Question 22
Incorrect
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A 70-year-old woman presents following a fall. During an assessment of her fall, she complained of balance problems, nausea and dizziness whenever she moves her head or looks up, eg to hang laundry on her washing line outside. She denies loss of consciousness and did not injure herself during the fall. Her past medical history consists of osteoarthritis of the knees and lower back.
On examination, her gait and balance and neurological examination are normal and there are no injuries. The Hallpike test is positive.
Which of the following is the most appropriate management for this patient’s vertigo?Your Answer: Admit for brain magnetic resonance imaging (MRI)
Correct Answer: Epley manoeuvre
Explanation:Management Options for Benign Paroxysmal Positional Vertigo (BPPV)
Benign paroxysmal positional vertigo (BPPV) is a common condition that can cause dizziness and vertigo. The best first-line management option for BPPV is the Epley manoeuvre, which can reposition the debris in the vestibular canals and provide rapid relief. If symptoms persist, investigations may be necessary to rule out more serious brain pathologies, but a brain MRI is not typically required for a BPPV diagnosis. Medications such as prochlorperazine or betahistine may help with symptoms in the short term, but they do not treat the underlying cause. Vestibular retraining exercises, such as Brandt-Daroff exercises, can also be effective if symptoms persist despite the Epley manoeuvre.
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This question is part of the following fields:
- ENT
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Question 23
Incorrect
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A woman in her early 50s, who is a singer, has a history of thyroid surgery and needs another procedure due to recurrent thyroid carcinoma. Following the surgery, she experiences a change in her voice and is unable to reach high notes while singing. During flexible laryngoscopy, it is observed that her left vocal cord does not elongate during phonation.
Which nerve is likely to have been affected?Your Answer: Lingual nerve
Correct Answer: External branch of the superior laryngeal nerve
Explanation:Nerves Related to the Thyroid Gland and Their Risks in Surgery
The thyroid gland is closely related to several nerves, including the external branch of the superior laryngeal nerve, recurrent laryngeal nerve, ansa cervicalis nerve, hypoglossal nerve, and lingual nerve. During neck dissection or surgery involving the thyroid or submandibular gland, these nerves may be at risk of damage.
The external branch of the superior laryngeal nerve innervates the cricothyroid muscle, which elongates the vocal cords. Damage to this nerve can result in an inability to produce high-frequency notes. The recurrent laryngeal nerve, on the other hand, innervates all intrinsic muscles of the thyroid except the cricothyroid muscle. Its injury can cause hoarseness and difficulty in adducting the vocal cords, leading to an aspiration risk.
The ansa cervicalis nerve is located superiorly to the thyroid and may be unavoidable to divide during surgery. The hypoglossal nerve is found even more superiorly and is at risk in submandibular gland excision and neck dissection. The lingual nerve is also located superiorly and may be at risk in submandibular gland excision, along with the hypoglossal nerve and the marginal mandibular branch of the facial nerve.
In summary, surgeons must be aware of the location and function of these nerves to minimize the risk of damage during thyroid or submandibular gland surgery.
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This question is part of the following fields:
- ENT
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Question 24
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A 45-year-old woman presents with a neck swelling. The lump is smooth, non-tender and in the midline of the neck, just below the cricoid cartilage. A thyroglossal cyst is suspected.
Which of the following features is most indicative of this condition?Your Answer: Rises when patient protrudes her tongue
Explanation:Thyroglossal Cysts: Causes and Symptoms
Thyroglossal cysts are a type of neck mass that can occur due to a developmental abnormality in the thyroid gland. These cysts are usually located in the midline of the neck and can cause various symptoms. Here are some important facts about thyroglossal cysts:
Causes:
Thyroglossal cysts occur when part of the thyroglossal duct, which connects the tongue to the thyroid gland during embryonic development, remains and transforms into a cyst. This can happen due to incomplete closure of the duct.Symptoms:
One of the most distinctive symptoms of a thyroglossal cyst is that it rises upwards when the patient protrudes their tongue. This is because the cyst is still connected to the tongue. However, it remains immobile when the patient swallows. Thyroglossal cysts are usually painless, but they can become tender if infected. They are not typically associated with lymphadenopathy. Most thyroglossal cysts present in the teens or early twenties.Treatment:
Surgical removal is the most common treatment for thyroglossal cysts. This involves removing the cyst and the portion of the thyroglossal duct that is still present. The surgery is usually performed under general anesthesia and has a high success rate.In conclusion, thyroglossal cysts are a type of neck mass that can cause distinctive symptoms. While they are usually benign, they should be evaluated by a healthcare professional to rule out other conditions and determine the best course of treatment.
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This question is part of the following fields:
- ENT
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Question 25
Incorrect
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A surgeon prepares to excise the submandibular gland for a suspected malignancy in a pediatric patient. He incises the skin and the platysma in the neck below the gland, then proceeds to dissect the gland free of its bed. As he dissects the deep lobe, he notes the submandibular duct, which he mobilises, ligates and cuts anteriorly.
When cutting the duct, which of the following needs the most care to be taken to avoid damage?Your Answer: The mandibular branch of the facial nerve
Correct Answer: The lingual nerve
Explanation:Anatomy of the Submandibular Gland and Related Structures
The submandibular gland is composed of a superficial and deep part, with the facial artery passing between the gland and mandible and the facial vein indenting it superiorly. To access the deep lobe of the gland, both structures must be ligated and cut. The mandibular branch of the facial nerve is at risk of damage during the initial incision, while the lingual nerve is closely related to the submandibular duct and carries various fibers. The facial artery and vein may also be ligated during dissection, but are not as intimately related to the duct as the lingual nerve. The lesser petrosal branch of the glossopharyngeal nerve carries parasympathetic supply to the parotid gland and synapses in the otic ganglion.
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This question is part of the following fields:
- ENT
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Question 26
Incorrect
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A 47-year-old woman presents with a lump in the upper anterior triangle of her neck. She reports that it has been present for a few weeks and only started to bother her after a friend pointed it out. She denies any other symptoms such as weight loss or fevers. She recalls her mother having a similar swelling removed but does not remember the diagnosis. On examination, there is a small, smooth, non-tender, mobile lump. The skin overlying the lump appears normal, and it does not move on swallowing or tongue protrusion. What is the most likely diagnosis?
Your Answer: Sternocleidomastoid tumour
Correct Answer: Sebaceous cyst
Explanation:Differentiating between various types of lumps and bumps on the body
When it comes to lumps and bumps on the body, it can be difficult to determine what they are and whether they require medical attention. Here are some common types of lumps and their characteristics to help differentiate between them.
Sebaceous cysts are small, smooth lumps that are caused by a blocked hair follicle. They are attached to the skin and may have a central punctum with a horn on top. If infected, they can become tender and the skin over them may become red and hot. Excision may be necessary if they are unsightly or infected.
Lipomas are deep to the skin and are typically soft, doughy, and mobile. An ultrasound or biopsy may be necessary to rule out sarcoma or liposarcoma.
Thyroid masses may be indicative of thyroid carcinoma or goitre. A thyroid malignancy would typically be hard, firm, and non-tender, while a goitre can be smooth or multinodular. Symptoms associated with thyroid disease may also be present.
Sternocleidomastoid tumors are congenital lumps that appear within the first few weeks of life and are located beneath the sternocleidomastoid muscle. They can restrict contralateral head movement.
It is important to seek medical attention if any lump or bump is causing discomfort or changes in appearance.
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This question is part of the following fields:
- ENT
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Question 27
Correct
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A 38-year-old man presents with a one-month history of feeling a lump in his throat. The feeling comes and goes and has not progressed. He has no difficulty swallowing food or liquids; in fact, eating and drinking help to relieve the symptoms. He has not lost weight. He is a non-smoker. He was recently diagnosed with gastro-oesophageal reflux disease (GORD) and is taking a proton pump inhibitor. He also has chronic sinusitis, for which he takes a steroid nasal spray.
Examination is normal, without cervical lymphadenopathy.
What is the most likely diagnosis in this case?Your Answer: Globus pharyngeus
Explanation:Globus pharyngeus is a condition where patients feel a painless lump at the back of their throat. The cause of this condition is unknown, but it is often attributed to anxiety, pharyngeal spasm, reflux disease, or hiatus hernia. However, it is important to rule out more serious conditions such as thyroid disorders or cancer before diagnosing globus pharyngeus. An oesophageal ring is a benign structure at the lower end of the oesophagus that can cause swallowing difficulties. While not always symptomatic, patients may experience regurgitation and food obstruction. A diagnosis is confirmed through upper gastrointestinal endoscopy to rule out more serious causes such as oesophageal cancer. Achalasia is a disorder of the oesophagus where the lower oesophageal sphincter fails to relax, causing difficulty swallowing and regurgitation. A barium swallow and manometry can confirm the diagnosis. Eosinophilic oesophagitis is an allergic reaction that causes pain and heartburn upon swallowing, as well as vomiting and loss of appetite. Laryngeal squamous cell carcinoma is a type of head and neck cancer associated with smoking and other carcinogens. Symptoms include hoarseness, coughing, difficulty swallowing, and systemic signs of distant metastases. However, the patient in question had no warning signs or risk factors for this type of cancer.
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This question is part of the following fields:
- ENT
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Question 28
Correct
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A 5-year-old child, who was born in Germany, is brought to the General Practitioner (GP) by his mother because of recurrent sinus infections and failure to thrive. She is also concerned that the child has had diarrhoea for a few months, which is not resolving.
During the examination, you notice several shiny, pink masses occupying the nasal canals.
What is the most suitable initial step in treating this patient?Your Answer: Testing in which pilocarpine is administered
Explanation:Diagnostic Testing for Nasal Polyps in Children: The Role of Pilocarpine Sweat Test
Nasal polyps in children should raise suspicion of cystic fibrosis (CF), especially when accompanied by other symptoms. The gold standard test for CF diagnosis is the sweat test, which involves administering the direct-acting muscarinic agonist pilocarpine and measuring the chloride content of sweat. Loratadine, a second-generation antihistamine, is not the first step in managing nasal polyps. Genetic testing is more expensive and time-consuming than the sweat test and is not the initial diagnostic choice. Biopsy is not necessary for benign nasal polyps. Bacterial culture is not relevant to the pathology underlying nasal polyps in children.
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This question is part of the following fields:
- ENT
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Question 29
Correct
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A 65-year-old man, who presented to the Emergency Department a day before for uncontrollable epistaxis, has been admitted following Ear, Nose and Throat (ENT) referral. Bleeding was located and managed by posterior nasal packing. He had no complications following the procedure. However, on the next day, he developed fever, myalgia, hypotension, rashes in the oral mucocutaneous junctions, generalized oedema and several episodes of watery diarrhoea, with nausea and vomiting.
Which of the following investigations/findings would help you make a diagnosis?Your Answer: Culture and sensitivity of posterior nasal swab
Explanation:Interpreting Clinical Findings in a Patient with Posterior Nasal Swab Procedure
Toxic shock syndrome (TSS) is a potential complication of an infected posterior nasal swab in the management of epistaxis. Clinical signs and symptoms of multiorgan involvement, along with a positive swab from the posterior pharyngeal mucosa, would be diagnostic for TSS caused by Staphylococcus aureus. Blood cultures are not necessary for diagnosis, as they are positive in only 5% of cases. Eosinophilia is not characteristic of TSS, but rather a hallmark of drug reactions with eosinophilia and systemic symptoms (DRESS). Kawasaki’s disease, another systemic inflammatory disease, is characterised by an increase in acute phase reactants (ESR, CRP) and localised oedema. A non-blanching purpuric rash is typically seen in meningococcal infection and does not match with the clinical features and history of posterior nasal swab procedure in this patient.
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This question is part of the following fields:
- ENT
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Question 30
Incorrect
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A 48-year-old woman presents with a 10-day history of fever, sinus pain and fullness, bilateral yellow nasal discharge and difficulty smelling. Prior to this episode she describes having a minor cold, with sore throat and clear nasal discharge. She has no past medical history. On examination, her temperature is 38.2 °C and there is mild tenderness to palpation over the maxillofacial area. There are no nasal polyps. Her throat appears normal.
What should be included in the management of this patient's condition?Your Answer:
Correct Answer: Paracetamol
Explanation:Managing Acute Sinusitis: Treatment Options and Antibiotic Use
Acute sinusitis is a common condition that can cause discomfort and pain. Self-care measures such as paracetamol or ibuprofen can be used to manage symptoms of pain or fever. However, if symptoms persist for around ten days or more without improvement, a high-dose nasal corticosteroid may be prescribed for 14 days. While nasal corticosteroids may improve symptoms, they are not likely to affect how long they last and could cause systemic effects.
IV antibiotics should only be used in severe cases of systemic infection, intraorbital or periorbital complications, or intracranial complications. Systematic reviews and meta-analyses have shown that antibiotics, when compared with placebo, did not significantly increase the proportion of people in whom symptoms were cured or improved at 3–5 days follow-up. At 7–15 days follow-up, moderate quality evidence showed a statistically significant difference in effectiveness, but the clinical difference was small. This was not evident in the longer term.
For acute sinusitis following a cold, symptoms for <10 days are more commonly associated with a cold rather than viral or bacterial acute sinusitis. Prolonged symptoms (for around ten days or more without improvement) can be caused by either viral (more likely) or bacterial acute sinusitis. Only 0.5–2% of viral sinusitis is complicated by bacterial infection. Even then bacterial sinusitis is usually self-limiting and does not routinely need antibiotics. There is no evidence that topical antibiotics are useful in acute or chronic sinusitis. Understanding Treatment Options and Antibiotic Use for Acute Sinusitis
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- ENT
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