A 40-year-old woman presented with a 3-month history of a gradually enlarging brown mark over her left shin. It had bled spontaneously on two occasions and appears to have become darker over the last few weeks. No image is available.

What is the differential diagnosis? *This case is from Docplexus editorial team for educative purpose only Source: Core clinical cases in medical and surgical specialities Stay connected, the answer will be posted in next 48 hrs!