11th August 2020

A 71-year-old man presents with an ulcerated irregular nodular pink lesion on his left shoulder

A 71-year-old man presents with an ulcerated irregular nodular pink lesion on his left shoulder, which has been growing in size for around 18 months. You measure it at 27mm in diameter. His past medical history is significant for chronic lymphoblastic leukaemia, diagnosed 5 years ago, which is being managed conservatively.

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