Clinical Challenge: Asymptomatic Lesion on the Forearm

A 52-year-old man presents with a lesion on his right forearm that has been growing for the past year. He is an avid fisherman and admits to ample sun exposure. The lesion is asymptomatic without itching, burning, or bleeding. The patient's medical history is significant for basal cell carcinoma on the neck. Physical examination reveals a 1.0cm x 2.0cm erythematous, ...