Derm Dx: Enlarging lesion on the forearm

A patient, aged 52 years, presented with a lesion on his right forearm that had been enlarging in size over the past year. The patient reported that he was an avid fisherman and admitted to ample sun exposure. The lesion was asymptomatic with no itching, burning or bleeding.

The patient’s medical history was significant for a previous basal cell carcinoma ...