9th June 2025

A patient with Crohn’s disease presents to the gastro outpatient clinic for consideration of treatment escalation as he is not responding to first line therapy.

A patient with Crohn’s disease presents to the gastro outpatient clinic for consideration of treatment escalation as he is not responding to first line therapy. On systems review, he mentions a new lesion which has appeared on his leg. What is the most likely diagnosis? 

Select the SINGLE most appropriate option from the list below. Select ONE option only.