What’s this painless rash overlying a scar?
A 54-year-old woman presents as a new patient with a one-year history of worsening painless erythema overlying a scar on her dorsal left wrist.
Test your clinical know-how by taking the quiz below. If you select the wrong answer, have another go — you can try as many times as you like!
Professor Dedee Murrell is head of the department of dermatology at St George Hospital, Sydney, and conjoint professor at the University of NSW.
This article was co-authored by Dr Timothy Cowan, a dermatology registrar at St George Hospital.