mrcem2-0171

mrcem2-0171

A 42 year old male comes to the emergency department with a sudden onset of ‘tearing’ pain in the middle of his chest that extends to the center of his back. The patient is tall and has a slender physique. Additionally, you observe that the patient has elongated arms and fingers. During the chest examination, you notice a prominent protrusion of the sternum (pectus carinatum). What is the probable underlying cause of this patient’s chest pain?