7th August 2020

A 17-year-old underweight female presents with an erosion on the dorsum of her left hand

A 17-year-old underweight female presents with an erosion on the dorsum of her left hand. It is a linear lesion around 6cm long and 1cm in width. The patient reports it appeared suddenly one morning with no history of irritant exposure or trauma, and just does not seem to heal. The patient has a psychiatric history of a personality disorder, moderate depression and also self-reports a difficult relationship with food. 

For the patient above, please select the SINGLE most likely underlying diagnosis. Select ONE option from the list above.