It is crucial to correctly diagnose juvenile plantar dermatosis as it can be misidentified as athlete’s foot, and therefore requires different treatment.

Juvenile plantar dermatosis is a prevalent condition that causes dry skin on the feet in children and adolescents, typically affecting those aged 3 to 14, although it can occur in individuals of any age. One key distinguishing factor is that juvenile plantar dermatosis spares the web spaces, whereas tinea pedis (athlete’s foot) commonly affects these areas.

The initial treatment for juvenile plantar dermatosis involves using moisturizing cream at night and barrier cream during the day. Additionally, patients can be advised to reduce friction by wearing well-fitting shoes, two pairs of cotton socks, and changing socks frequently.

Eczema typically presents as scaly, red patches in flexor creases, such as the elbow or knee.

Contact dermatitis may appear similar to juvenile plantar dermatosis, but there would be a history of exposure to a potential trigger.

In summary, accurately diagnosing juvenile plantar dermatosis is crucial to ensure appropriate treatment is provided, as it can be mistaken for other conditions such as athlete’s foot.

Understanding Athlete’s Foot

Athlete’s foot, medically known as tinea pedis, is a common fungal infection that affects the skin on the feet. It is caused by fungi in the Trichophyton genus and is characterized by scaling, flaking, and itching between the toes. The condition is highly contagious and can spread through contact with infected surfaces or people.

To treat athlete’s foot, clinical knowledge summaries recommend using a topical imidazole, undecenoate, or terbinafine as a first-line treatment. These medications work by killing the fungi responsible for the infection and relieving symptoms. It is important to maintain good foot hygiene and avoid sharing personal items such as socks and shoes to prevent the spread of the infection. With proper treatment and prevention measures, athlete’s foot can be effectively managed.

Hypertrichosis is the result of Porphyria cutanea tarda, not hirsutism.

Understanding Hirsutism and Hypertrichosis

Hirsutism is a term used to describe excessive hair growth in women that is dependent on androgens, while hypertrichosis refers to hair growth that is not androgen-dependent. Polycystic ovarian syndrome is the most common cause of hirsutism, but other factors such as Cushing’s syndrome, obesity, and certain medications can also contribute to this condition. To assess hirsutism, the Ferriman-Gallwey scoring system is often used, which assigns scores to nine different body areas. Management of hirsutism may involve weight loss, cosmetic techniques, or the use of oral contraceptive pills or topical medications.

Hypertrichosis, on the other hand, can be caused by a variety of factors such as certain medications, congenital conditions, and even anorexia nervosa. It is important to identify the underlying cause of excessive hair growth in order to determine the most appropriate treatment approach. By understanding the differences between hirsutism and hypertrichosis, individuals can better manage these conditions and improve their quality of life.

Understanding Tinea Manuum: A Unilateral Scaly Rash

Tinea manuum is a type of fungal infection that affects the hands. It is characterized by a unilateral scaly rash that can also involve the back of the hand and nails. In some cases, both hands may be affected, but the involvement tends to be asymmetrical.

The most common cause of tinea manuum is an anthropophilic fungus such as Tricophyton rubrum, Tricophyton mentagrophytes, or Epidermophyton floccosum. These fungi are typically found on human skin and can be easily transmitted through direct contact.

In some cases, tinea manuum may present as a raised border with clearing in the middle, resembling a ringworm. This is more likely to occur when a zoophilic fungus is responsible, such as Trichophyton erinacei from a hedgehog or Microsporum canis from a cat or dog.

It is important to suspect dermatophyte fungus when a unilateral scaly rash is present on the hands. Treatment typically involves antifungal medication, and it is important to maintain good hand hygiene to prevent further spread of the infection.

A man with Reiter’s syndrome and chronic balanitis is likely to have Circinate balanitis, which is characterized by a well-defined erythematous plaque with a white border on the penis. This condition is caused by a sexually transmitted infection and requires evaluation by both a sexual health clinic and a rheumatology clinic. Zoon’s balanitis, on the other hand, is a benign condition that affects uncircumcised men and presents with orange-red lesions on the glans and foreskin. Erythroplasia of Queyrat is an in-situ squamous cell carcinoma that appears as red, velvety plaques and may be asymptomatic. Squamous cell carcinoma can also occur on the penis and may present as papillary or flat lesions, often associated with lichen planus or lichen sclerosus.

Understanding Balanitis: Causes, Assessment, and Treatment

Balanitis is a condition characterized by inflammation of the glans penis and sometimes extending to the underside of the foreskin. It can be caused by a variety of factors, including bacterial and candidal infections, autoimmune conditions, and poor hygiene. Proper assessment of balanitis involves taking a thorough history and conducting a physical examination to determine the cause and severity of the condition. In most cases, diagnosis is made clinically based on the history and examination, but in some cases, a swab or biopsy may be necessary to confirm the diagnosis.

Treatment of balanitis involves a combination of general and specific measures. General treatment includes gentle saline washes and proper hygiene practices, while specific treatment depends on the underlying cause of the condition. For example, candidiasis is treated with topical clotrimazole, while bacterial balanitis may be treated with oral antibiotics. Dermatitis and circinate balanitis are managed with mild potency topical corticosteroids, while lichen sclerosus and plasma cell balanitis of Zoon may require high potency topical steroids or circumcision.

Understanding the causes, assessment, and treatment of balanitis is important for both children and adults who may be affected by this condition. By taking proper hygiene measures and seeking appropriate medical treatment, individuals with balanitis can manage their symptoms and prevent complications.

Skin Conditions: Erythema Nodosum, Insect Bites, Discoid Eczema, Erysipelas, and Post-Traumatic Ecchymoses

Erythema nodosum is a painful skin condition characterized by tender, red nodules caused by inflammation of subcutaneous fat. It is more common in women aged 25-40 and can be associated with underlying conditions or occur in isolation.

Insect bites from non-venomous insects like mosquitoes, fleas, lice, and bed bugs can result in itchy papules or blisters grouped in the exposed body site. Bites often appear in clusters.

Discoid eczema is a type of eczema with unknown causes. It is characterized by round-to-oval, itchy, red, scaly plaques that may contain vesicles with serous exudate.

Erysipelas is a tender, red, indurated plaque with a well-defined border caused by group A beta-hemolytic streptococci.

Post-traumatic ecchymosis or bruises are large blood extravasations under the skin that may be caused by coagulation or vascular disorders. However, there is no history of trauma to support this diagnosis.

Understanding Genital Warts

Genital warts, also known as condylomata accuminata, are a common reason for visits to genitourinary clinics. These warts are caused by various types of the human papillomavirus (HPV), with types 6 and 11 being the most common. It is important to note that HPV, particularly types 16, 18, and 33, can increase the risk of cervical cancer.

The warts themselves are small, fleshy growths that are typically 2-5 mm in size and may be slightly pigmented. They can also cause itching or bleeding. Treatment options for genital warts include topical podophyllum or cryotherapy, depending on the location and type of lesion. Topical agents are generally used for multiple, non-keratinised warts, while solitary, keratinised warts respond better to cryotherapy. Imiquimod, a topical cream, is typically used as a second-line treatment. It is important to note that genital warts can be resistant to treatment, and recurrence is common. However, most anogenital HPV infections clear up on their own within 1-2 years without intervention.

The patient’s atypical lesion, with three of the five following characteristics, suggests a diagnosis of melanoma. The most common subtype in this patient population is acral lentiginous melanoma, which can occur in areas not exposed to the sun, such as the soles of the feet and palms.

It is unlikely that the lesion is an acquired or congenital naevus. New-onset pigmented lesions in patients over 50 should always be referred to a dermatologist for assessment. Congenital naevi are present at birth and the patient would have a long history with them.

Nodular melanoma is less likely in this case, as it typically presents as dark papules on sun-exposed areas of skin in the Caucasian population.

While superficial spreading melanoma is a possibility, a dark-skinned patient with a lesion on the palmar hand or soles of the feet is more likely to have acral lentiginous melanoma.

Malignant melanoma is a type of skin cancer that has four main subtypes: superficial spreading, nodular, lentigo maligna, and acral lentiginous. Nodular melanoma is the most aggressive, while the other forms spread more slowly. Superficial spreading melanoma typically affects young people on sun-exposed areas such as the arms, legs, back, and chest. Nodular melanoma appears as a red or black lump that bleeds or oozes and affects middle-aged people. Lentigo maligna affects chronically sun-exposed skin in older people, while acral lentiginous melanoma appears on nails, palms, or soles in people with darker skin pigmentation. Other rare forms of melanoma include desmoplastic melanoma, amelanotic melanoma, and melanoma arising in other parts of the body such as ocular melanoma.

The main diagnostic features of melanoma are changes in size, shape, and color. Secondary features include a diameter of 7mm or more, inflammation, oozing or bleeding, and altered sensation. Suspicious lesions should undergo excision biopsy, and the lesion should be completely removed to facilitate subsequent histopathological assessment. Once the diagnosis is confirmed, the pathology report should be reviewed to determine whether further re-excision of margins is required. The margins of excision are related to Breslow thickness, with lesions 0-1 mm thick requiring a margin of 1 cm, lesions 1-2 mm thick requiring a margin of 1-2 cm (depending on site and pathological features), lesions 2-4mm thick requiring a margin of 2-3 cm (depending on site and pathological features), and lesions over 4mm thick requiring a margin of 3 cm. Further treatments such as sentinel lymph node mapping, isolated limb perfusion, and block dissection of regional lymph node groups should be selectively applied.

Antiviral therapy, such as aciclovir, can effectively reduce the severity and duration of shingles. It can also lower the incidence of post-herpetic neuralgia, especially in older patients. However, for antivirals to be effective, they must be administered within 72 hours of rash onset.

Individuals with chronic diseases such as diabetes mellitus, chronic kidney disease, inflammatory bowel disease, asthma, chronic obstructive pulmonary disease, rheumatoid arthritis, autoimmune diseases, and immunosuppressive conditions like HIV are at a higher risk of developing post-herpetic neuralgia.

Older patients, particularly those over 50 years old, are also at an increased risk of developing post-herpetic neuralgia. However, the relationship between gender and post-herpetic neuralgia is still unclear, with some studies suggesting that females are at a higher risk, while others indicate the opposite or no association.

Unfortunately, having a shingles rash on either the trunk or face is associated with an increased risk of post-herpetic neuralgia, not a reduced risk.

Shingles is a painful blistering rash caused by reactivation of the varicella-zoster virus. It is more common in older individuals and those with immunosuppressive conditions. The diagnosis is usually clinical and management includes analgesia, antivirals, and reminding patients they are potentially infectious. Complications include post-herpetic neuralgia, herpes zoster ophthalmicus, and herpes zoster oticus. Antivirals should be used within 72 hours to reduce the incidence of post-herpetic neuralgia.

Identifying Seborrhoeic Dermatitis: A Comparison with Other Skin Conditions

Seborrhoeic dermatitis is a common skin condition that produces a scaled rash. However, it can be difficult to distinguish from other skin conditions that also produce scaling lesions. Here, we compare seborrhoeic dermatitis with psoriasis, atopic eczema, folliculitis, and tinea capitis to help identify the key features of each condition.

Seborrhoeic dermatitis is characterized by a poorly defined rash, greasy skin, and a specific distribution pattern. Psoriasis, on the other hand, produces well-defined plaques and doesn’t typically involve greasy skin. Atopic eczema produces dry, scaling skin and often affects flexural sites, whereas folliculitis is inflammation of the hair follicles and doesn’t typically involve greasy skin. Tinea capitis, which causes hair loss and scaling of the skin, is less likely in this case as there is no hair loss present.

By comparing the key features of each condition, it becomes clear that the greasy skin and distribution pattern make seborrhoeic dermatitis the most likely diagnosis.

Types of Alopecia and Their Causes

Alopecia, or hair loss, can be categorized into two types: scarring and non-scarring. Scarring alopecia occurs when the hair follicle is destroyed, while non-scarring alopecia is characterized by the preservation of the hair follicle.

Scarring alopecia can be caused by various factors such as trauma, burns, radiotherapy, lichen planus, discoid lupus, and untreated tinea capitis. On the other hand, non-scarring alopecia can be attributed to male-pattern baldness, certain drugs like cytotoxic drugs, carbimazole, heparin, oral contraceptive pill, and colchicine, nutritional deficiencies such as iron and zinc deficiency, autoimmune disorders like alopecia areata, telogen effluvium, hair loss following a stressful period like surgery, and trichotillomania.

It is important to identify the type of alopecia and its underlying cause in order to determine the appropriate treatment. In some cases, scarring may develop in untreated tinea capitis if a kerion develops. Understanding the different types and causes of alopecia can help individuals take necessary steps to prevent or manage hair loss.

Common Causes of Contact Dermatitis

Contact dermatitis is a skin condition that occurs when the skin comes into contact with an irritant or allergen. The most common causes of contact dermatitis include soap and cleaning agents, which can affect people in various fields, especially cleaners and healthcare workers. Wet work is also a significant cause of dermatitis. Latex, particularly in the form of latex-powdered gloves, used to be a common irritant, but the use of latex-free gloves has reduced its occurrence. Nickel found in jewelry can cause a localized reaction, but it is less common than dermatitis caused by soap and cleaning products. Acrylics can also cause contact dermatitis, but they are less common than other irritants. Natural fibers like cotton are less likely to cause a dermatitis reaction compared to synthetic fibers.

Combining oral isotretinoin with tetracyclines is not recommended as it may lead to benign intracranial hypertension. Trimethoprim is not suitable for treating skin or soft tissue infections. Clindamycin, a lincomycin antibiotic, can be used for such infections, especially if the patient is allergic to penicillin. Co-amoxiclav doesn’t interact with isotretinoin, but it cannot be used in patients with penicillin allergy. Doxycycline, a tetracycline antibiotic, should be avoided when a patient is taking isotretinoin due to the risk of benign intracranial hypertension.

Understanding Isotretinoin and its Adverse Effects

Isotretinoin is a type of oral retinoid that is commonly used to treat severe acne. It has been found to be effective in providing long-term remission or cure for two-thirds of patients who undergo a course of treatment. However, it is important to note that isotretinoin also comes with several adverse effects that patients should be aware of.

One of the most significant adverse effects of isotretinoin is its teratogenicity, which means that it can cause birth defects in fetuses if taken during pregnancy. For this reason, females who are taking isotretinoin should ideally be using two forms of contraception to prevent pregnancy. Other common adverse effects of isotretinoin include dry skin, eyes, and lips/mouth, low mood, raised triglycerides, hair thinning, nosebleeds, and photosensitivity.

It is also worth noting that there is some controversy surrounding the potential link between isotretinoin and depression or other psychiatric problems. While these adverse effects are listed in the British National Formulary (BNF), further research is needed to fully understand the relationship between isotretinoin and mental health.

Overall, while isotretinoin can be an effective treatment for severe acne, patients should be aware of its potential adverse effects and discuss any concerns with their healthcare provider.

Henoch-Schönlein Purpura: Symptoms and Duration

Henoch-Schönlein Purpura (HSP) is a condition characterized by a rash on the back and thighs that is palpable and non-blanching, but is a non-thrombocytopenic purpura. Children with HSP may experience abdominal pain and bloody stools, which are cardinal symptoms of the disease. The kidneys are also often involved, and patients may have frank haematuria. The disease typically lasts about four weeks and resolves spontaneously.

Causes of Balanitis and their Risk Factors

Balanitis is a condition characterized by inflammation of the glans penis. There are several causes of balanitis, and identifying the underlying cause is crucial for effective treatment. Here are some of the common causes of balanitis and their associated risk factors:

Diabetes Mellitus: Diabetes is the most common underlying condition associated with adult balanitis, especially if the blood sugar is poorly controlled. It predisposes the patient to a bacterial or candida infection. Obesity is also a risk factor for underlying diabetes.

Human Immunodeficiency Virus Infection: While immunosuppression (such as secondary to HIV infection) predisposes to balanitis, there are no indications that he is at risk of HIV.

Contact Dermatitis: Contact or irritant dermatitis is a cause of balanitis; however, there are no risk factors described. Common causes of contact dermatitis balanitis include condoms, soap, and poor hygiene.

Syphilis: Syphilis is a cause of infective balanitis; however, it is not the most common cause and is unlikely in a patient who denies recent sexual contact.

Trichomonas: Although a cause of infective balanitis, trichomonas is not the most common cause and is unlikely in a patient who denies recent sexual contact.

In conclusion, identifying the underlying cause of balanitis is crucial for effective treatment. Diabetes, HIV infection, contact dermatitis, syphilis, and trichomonas are some of the common causes of balanitis, and their associated risk factors should be considered during diagnosis.

Ciclosporin can cause an increase in various bodily functions and conditions, including fluid retention, blood pressure, potassium levels, hair growth, gum swelling, and glucose levels.

Understanding Ciclosporin: An Immunosuppressant Drug

Ciclosporin is a medication that is used as an immunosuppressant. It works by reducing the clonal proliferation of T cells by decreasing the release of IL-2. The drug binds to cyclophilin, forming a complex that inhibits calcineurin, a phosphatase that activates various transcription factors in T cells.

Despite its effectiveness, Ciclosporin has several adverse effects. It can cause nephrotoxicity, hepatotoxicity, fluid retention, hypertension, hyperkalaemia, hypertrichosis, gingival hyperplasia, tremors, impaired glucose tolerance, hyperlipidaemia, and increased susceptibility to severe infection. However, it is interesting to note that Ciclosporin is virtually non-myelotoxic, which means it doesn’t affect the bone marrow.

Ciclosporin is used to treat various conditions such as following organ transplantation, rheumatoid arthritis, psoriasis, ulcerative colitis, and pure red cell aplasia. It has a direct effect on keratinocytes and modulates T cell function, making it an effective treatment for psoriasis.

In conclusion, Ciclosporin is a potent immunosuppressant drug that can effectively treat various conditions. However, it is essential to monitor patients for adverse effects and adjust the dosage accordingly.

When faced with a skin ulcer that doesn’t heal, it is important to consider pyoderma gangrenosum as a possible diagnosis. This condition typically begins as a red bump that eventually turns into a painful ulcer with a purple, indented border. It is often linked to autoimmune disorders in approximately 50% of cases.

Understanding Pyoderma Gangrenosum

Pyoderma gangrenosum is a rare inflammatory disorder that causes painful skin ulceration. While it can affect any part of the skin, it is most commonly found on the lower legs. This condition is classified as a neutrophilic dermatosis, which means that it is characterized by the infiltration of neutrophils in the affected tissue. The exact cause of pyoderma gangrenosum is unknown in 50% of cases, but it can be associated with inflammatory bowel disease, rheumatological conditions, haematological disorders, and other conditions.

The initial symptoms of pyoderma gangrenosum may start suddenly with a small pustule, red bump, or blood-blister. The skin then breaks down, resulting in an ulcer that is often painful. The edge of the ulcer is typically described as purple, violaceous, and undermined. The ulcer itself may be deep and necrotic and may be accompanied by systemic symptoms such as fever and myalgia. Diagnosis is often made by the characteristic appearance, associations with other diseases, the presence of pathergy, histology results, and ruling out other causes of an ulcer.

Treatment for pyoderma gangrenosum typically involves oral steroids as first-line therapy due to the potential for rapid progression. Other immunosuppressive therapies, such as ciclosporin and infliximab, may be used in difficult cases. It is important to note that any surgery should be postponed until the disease process is controlled on immunosuppression to avoid worsening the condition. Understanding pyoderma gangrenosum and its potential causes and treatments can help patients and healthcare providers manage this rare and painful condition.

Understanding Keratoacanthoma

Keratoacanthoma is a type of non-cancerous tumor that affects the epithelial cells. It is more commonly found in older individuals and is rare in younger people. The appearance of this tumor is often described as a volcano or crater, starting as a smooth dome-shaped papule that rapidly grows into a central crater filled with keratin. While spontaneous regression within three months is common, it is important to have the lesion removed as it can be difficult to distinguish from squamous cell carcinoma. Removal can also prevent scarring. It is important to be aware of the features of keratoacanthoma and seek medical attention if any suspicious growths are noticed.

Hidradenitis suppurativa is a skin disorder that is chronic, painful, and inflammatory. It is characterized by the presence of nodules, pustules, sinus tracts, and scars in areas where skin folds overlap, such as the armpits, groin, and inner thighs.

This condition is more common in women, smokers, and individuals with a higher body mass index. Over time, the lesions can lead to the development of scars and sinus tracts.

Acanthosis nigricans, on the other hand, is a skin condition characterized by thickening and discoloration of the skin in skin folds. It is often a sign of an underlying disease such as diabetes or malignancy.

Acne vulgaris is another skin condition that can present with papules and pustules, but it typically affects the face, upper back, and chest rather than the areas affected by hidradenitis suppurativa.

Rosacea is a skin condition that causes redness and inflammatory papules on the face, particularly on the cheeks and nose.

Understanding Hidradenitis Suppurativa

Hidradenitis suppurativa (HS) is a chronic skin disorder that causes painful and inflammatory nodules, pustules, sinus tracts, and scars in intertriginous areas. It is more common in women and typically affects adults under 40. HS occurs due to chronic inflammatory occlusion of folliculopilosebaceous units that obstructs the apocrine glands and prevents keratinocytes from properly shedding from the follicular epithelium. Risk factors include family history, smoking, obesity, diabetes, polycystic ovarian syndrome, and mechanical stretching of skin.

The initial manifestation of HS involves recurrent, painful, and inflamed nodules that can rupture and discharge purulent, malodorous material. The axilla is the most common site, but it can also occur in other areas such as the inguinal, inner thighs, perineal and perianal, and inframammary skin. Coalescence of nodules can result in plaques, sinus tracts, and ‘rope-like’ scarring. Diagnosis is made clinically.

Management of HS involves encouraging good hygiene and loose-fitting clothing, smoking cessation, and weight loss in obese patients. Acute flares can be treated with steroids or antibiotics, and surgical incision and drainage may be needed in some cases. Long-term disease can be treated with topical or oral antibiotics. Lumps that persist despite prolonged medical treatment are excised surgically. Complications of HS include sinus tracts, fistulas, comedones, scarring, contractures, and lymphatic obstruction.

HS can be differentiated from acne vulgaris, follicular pyodermas, and granuloma inguinale. Acne vulgaris primarily occurs on the face, upper chest, and back, whereas HS primarily involves intertriginous areas. Follicular pyodermas are transient and respond rapidly to antibiotics, unlike HS. Granuloma inguinale is a sexually transmitted infection caused by Klebsiella granulomatis and presents as an enlarging ulcer that bleeds in the inguinal area.

Overall, understanding HS is crucial for early diagnosis and effective management of this chronic and painful skin disorder.

Switching from the combined contraceptive pill to a progesterone only pill can potentially decrease melasma, as it is believed that elevated levels of estrogen stimulate melanocytes. Given her irregular work schedule, Cerazette, which has a 12-hour usage window, may be a better option for her than norethisterone.

Understanding Melasma: A Common Skin Condition

Melasma is a skin condition that causes the development of dark patches or macules on sun-exposed areas, especially the face. It is more common in women and people with darker skin. The term chloasma is sometimes used to describe melasma during pregnancy. The condition is often associated with hormonal changes, such as those that occur during pregnancy or with the use of hormonal medications like the combined oral contraceptive pill or hormone replacement therapy.

Lithium has been found to potentially worsen psoriasis symptoms.

Psoriasis can be worsened by various factors, including trauma, alcohol consumption, and certain medications such as beta blockers, lithium, antimalarials (chloroquine and hydroxychloroquine), NSAIDs, ACE inhibitors, and infliximab. Additionally, the sudden withdrawal of systemic steroids can also exacerbate psoriasis symptoms. It is important to note that streptococcal infection can trigger guttate psoriasis, a type of psoriasis characterized by small, drop-like lesions on the skin. Therefore, individuals with psoriasis should be aware of these exacerbating factors and take steps to avoid or manage them as needed.

Seborrhoeic dermatitis is a common cause of an itchy rash on the face and scalp, with a typical distribution pattern. Unlike atopic dermatitis, which affects flexural areas, seborrhoeic dermatitis is characterized by scales. Pityriasis rosea, on the other hand, presents with a herald patch on the trunk, followed by scaly patches that form a fir-tree pattern.

Understanding Seborrhoeic Dermatitis in Adults

Seborrhoeic dermatitis is a chronic skin condition that affects around 2% of the general population. It is caused by an inflammatory reaction related to the overgrowth of a fungus called Malassezia furfur, which is a normal inhabitant of the skin. The condition is characterized by eczematous lesions that appear on the sebum-rich areas of the body, such as the scalp, periorbital, auricular, and nasolabial folds. It can also lead to the development of otitis externa and blepharitis.

Seborrhoeic dermatitis is often associated with other medical conditions, such as HIV and Parkinson’s disease. The management of scalp disease typically involves the use of over-the-counter preparations containing zinc pyrithione or tar as a first-line treatment. If these are not effective, ketoconazole is the preferred second-line agent. Selenium sulphide and topical corticosteroids may also be useful.

For the management of seborrhoeic dermatitis on the face and body, topical antifungals such as ketoconazole are recommended. Topical steroids can also be used, but only for short periods. However, the condition can be difficult to treat, and recurrences are common. It is important to seek medical advice if the symptoms persist or worsen despite treatment.

Severe psoriasis is typically treated with methotrexate and ciclosporin as the initial systemic agents.

Systemic Therapy for Psoriasis

Psoriasis is a chronic skin condition that can have a significant impact on physical, psychological, and social wellbeing. Topical therapy is often the first line of treatment, but in cases where it is not effective, systemic therapy may be necessary. However, systemic therapy should only be initiated in secondary care.

Non-biological systemic therapy, such as methotrexate and ciclosporin, is used when psoriasis cannot be controlled with topical therapy and has a significant impact on wellbeing. NICE has set criteria for the use of non-biological systemic therapy, including extensive psoriasis, severe nail disease, or phototherapy ineffectiveness. Methotrexate is generally used first-line, but ciclosporin may be a better choice for those who need rapid or short-term disease control, have palmoplantar pustulosis, or are considering conception.

Biological systemic therapy, including adalimumab, etanercept, infliximab, and ustekinumab, may also be used. However, a failed trial of methotrexate, ciclosporin, and PUVA is required before their use. These agents are administered through subcutaneous injection or intravenous infusion.

In summary, systemic therapy for psoriasis should only be initiated in secondary care and is reserved for cases where topical therapy is ineffective. Non-biological and biological systemic therapy have specific criteria for their use and should be carefully considered by healthcare professionals.

Kawasaki Disease Treatment and Follow-Up

Patients diagnosed with Kawasaki disease typically require hospitalization for treatment with intravenous immunoglobulin and to monitor for potential myocardial events. Due to the risk of cardiac complications, follow-up echocardiograms are necessary to detect any coronary artery aneurysms. It is important to note that Kawasaki disease is not a notifiable disease.

The acral-lentiginous melanoma is a subtype of melanoma that is often disregarded and not commonly seen in Caucasians. It is more prevalent in individuals from the Far East. This type of melanoma typically grows slowly and may not be noticeable in its early stages, presenting as pigmented patches on the sole. As it progresses, nodular areas may develop, indicating deeper growth. Sadly, the Jamaican musician Bob Marley passed away at the age of 36 due to complications from an acral lentiginous melanoma.

Malignant melanoma is a type of skin cancer that has four main subtypes: superficial spreading, nodular, lentigo maligna, and acral lentiginous. Nodular melanoma is the most aggressive, while the other forms spread more slowly. Superficial spreading melanoma typically affects young people on sun-exposed areas such as the arms, legs, back, and chest. Nodular melanoma appears as a red or black lump that bleeds or oozes and affects middle-aged people. Lentigo maligna affects chronically sun-exposed skin in older people, while acral lentiginous melanoma appears on nails, palms, or soles in people with darker skin pigmentation. Other rare forms of melanoma include desmoplastic melanoma, amelanotic melanoma, and melanoma arising in other parts of the body such as ocular melanoma.

The main diagnostic features of melanoma are changes in size, shape, and color. Secondary features include a diameter of 7mm or more, inflammation, oozing or bleeding, and altered sensation. Suspicious lesions should undergo excision biopsy, and the lesion should be completely removed to facilitate subsequent histopathological assessment. Once the diagnosis is confirmed, the pathology report should be reviewed to determine whether further re-excision of margins is required. The margins of excision are related to Breslow thickness, with lesions 0-1 mm thick requiring a margin of 1 cm, lesions 1-2 mm thick requiring a margin of 1-2 cm (depending on site and pathological features), lesions 2-4mm thick requiring a margin of 2-3 cm (depending on site and pathological features), and lesions over 4mm thick requiring a margin of 3 cm. Further treatments such as sentinel lymph node mapping, isolated limb perfusion, and block dissection of regional lymph node groups should be selectively applied.

Understanding Actinic Keratoses: Causes, Symptoms, and Treatment Options

Actinic keratoses (AK) or solar keratoses are skin lesions caused by prolonged exposure to ultraviolet light. This condition is commonly seen in fair-skinned individuals who have spent a lot of time in the sun. While AK is similar to Bowen’s disease, which is a type of skin cancer, most solitary lesions do not progress to malignancy. However, patients with more than 10 AKs have a 10 to 15% risk of developing skin cancer, making it a significant concern.

AKs typically start as small rough spots that are more easily felt than seen. Over time, they enlarge and become red and scaly. Lesions with pronounced hyperkeratosis, increased erythema, or induration, ulceration, and lesions that recur after treatment or are unresponsive to treatment should be suspected of malignant change.

For mild AKs, no therapy or emollients are necessary. However, curettage or excision, cryotherapy, and photodynamic therapy are the most effective treatments. 5-fluorouracil cream can clear AKs, but it produces a painful inflammatory response. Diclofenac gel has moderate efficacy but has fewer side effects than other topical preparations and is used for mild AKs.

In conclusion, understanding the causes, symptoms, and treatment options for AKs is crucial for early detection and prevention of skin cancer. Regular skin checks and sun protection measures are essential for individuals at risk of developing AKs.

Comparison of Discoid Eczema and Psoriasis

Discoid eczema is a skin condition characterized by coin-shaped plaques that are well-defined and often occur on the extremities, especially the legs. Lesions may also appear on the arms, trunk, hands, or feet, but not on the face or scalp. The plaques are intensely itchy and may clear in the center, resembling tinea corporis. An exudative form of the condition also exists, which is vesiculated.

On the other hand, psoriasis is a skin condition that often affects the extensor surfaces, particularly at the elbows and knees. The scalp is also commonly involved. The scale is thick and silvery, and there may be nail changes, such as pitting. Itching may occur, but it is less severe than in discoid eczema.

In summary, while both conditions may present with similar symptoms, such as itching and skin lesions, they have distinct differences in terms of their location, appearance, and severity of itching. It is important to consult a healthcare professional for an accurate diagnosis and appropriate treatment.

Topical Treatments for Facial Psoriasis

When it comes to treating facial psoriasis, it’s important to use the right topical treatments to avoid skin irritation and adverse effects. The National Institute for Health and Care Excellence (NICE) recommends using a mild or moderately potent steroid for two weeks, along with emollients. Calcipotriol can be used intermittently if topical corticosteroids aren’t effective enough. However, betamethasone, a potent steroid, should not be used on the face. Coal-tar solution is also not recommended for facial psoriasis. Tacrolimus ointment can be used intermittently if other treatments aren’t working. By using the appropriate topical treatments, patients can manage their facial psoriasis effectively.

To effectively treat acne, it is not recommended to use both topical and oral antibiotics together. Instead, the patient should switch to using either topical benzoyl peroxide or a topical retinoid alone. Continuing to use the current combination gel or switching to topical clindamycin or topical lymecycline alone are not recommended as they involve the use of both topical and oral antibiotics, which can lead to antibiotic resistance. According to NICE guidelines, a combination of topical benzoyl peroxide or a topical retinoid with oral antibiotics is a more effective treatment option.

Acne vulgaris is a common skin condition that usually affects teenagers and is characterized by the obstruction of hair follicles with keratin plugs, resulting in comedones, inflammation, and pustules. The severity of acne can be classified as mild, moderate, or severe, depending on the number and type of lesions present. Treatment for acne typically involves a step-up approach, starting with single topical therapy and progressing to combination therapy or oral antibiotics if necessary. Tetracyclines are commonly used but should be avoided in certain populations, and a topical retinoid or benzoyl peroxide should always be co-prescribed to reduce the risk of antibiotic resistance. Combined oral contraceptives can also be used in women, and oral isotretinoin is reserved for severe cases under specialist supervision. Dietary modification has no role in the management of acne.

Treatment of Facial Psoriasis: Precautions and Options

When it comes to treating psoriasis on the face, it is important to keep in mind that the skin in this area is particularly sensitive. While various preparations can be used, some may cause irritation, staining, or other unwanted effects. For instance, calcipotriol can irritate the skin, betamethasone can lead to skin atrophy, and coal tar and dithranol can cause staining. Therefore, milder options are typically preferred, such as hydrocortisone or clobetasone butyrate. These may also be combined with an agent that is effective against Candida for flexural psoriasis.

It is important to note that corticosteroids should only be used for a limited time (1-2 weeks per month) to treat facial psoriasis. If short-term moderate potency corticosteroids do not provide satisfactory results or if continuous treatment is needed, a calcineurin inhibitor such as pimecrolimus cream or tacrolimus ointment may be used for up to 4 weeks. However, it is worth noting that these options do not have a license for this particular indication. Overall, caution and careful consideration of the options are key when treating psoriasis on the face.

Cutaneous Horns and the Risk of Squamous Cell Carcinoma

Cutaneous horns are hard, keratin-based growths that often occur on sun-damaged skin. Farmers and other outdoor workers are particularly at risk due to their increased sun exposure. While most cutaneous horns are benign, doctors should be cautious as they can be a sign of squamous cell carcinoma (SCC) at the base of the lesion. SCCs can metastasize, especially if they occur on the ear, so urgent referral for removal is necessary if an SCC is suspected.

Although most cutaneous horns are caused by viral warts or seborrheic keratosis, up to 20% of lesions can be a sign of premalignant actinic keratoses or frank malignancy. Therefore, it is important for doctors to carefully evaluate any cutaneous horn and consider the possibility of SCC. While current guidelines discourage GPs from excising lesions suspected to be SCCs, urgent referral for removal is necessary to prevent metastasis and ensure the best possible outcome for the patient.