1st April 2022

A patient presents to the GP with an itchy circular lesion which they have had for nearly two months

A patient presents to the GP with an itchy circular lesion which they have had for nearly two months. On further examination, you note that there are further lesions on the arms and more on the legs. Some of the lesions have small bumps in clusters, and others appear to be largely inflamed with normal skin in the middle. You suspect a diagnosis of discoid eczema and decide the lesions do not look like tinea corporis. What is your next investigative step?

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