A 65-year-old White man with a history of nonmelanoma skin cancers presents to the dermatology clinic with a mole on his right leg that has been present for 6 months. The patient notes that the lesion is not painful, itchy, or bleeding. He reports that the mole started as a small lesion but has grown steadily over the last half year. The patient states that he goes sailing several times a year and reports a history of several blistering sunburns. Physical examination reveals a 1.2- × 1.3-cm hyperpigmented lesion with irregular borders and color variegation on the patient’s right lower leg.

Can you diagnose the condition in Case 1?

A. Seborrheic keratosis
B. Melanoma
C. Benign nevus
D. Lentigo

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