5th June 2025

A 45-year-old female patient presents to her GP with a 2 day history of a non-resolving rash.

A 45-year-old female patient presents to her GP with a 2 day history of a non-resolving rash. She has been sun-bathing in her back garden and has noticed new violaceous macules on her upper lids, as well as some eyelid swelling. Today, she has a new erythematous rash on her chest and back. 

What is the pathognomonic sign of dermatomyositis? 

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