Case 2
A 76-year-old white man presents to the dermatologist with a 1-cm scaly, ulcerative, exophytic plaque on his left arm. The patient first noticed the lesion approximately 5 months ago and reports that it has slowly grown in size. The lesion has a central crust and appears necrotic. He states that the lesion occasionally bleeds, especially if accidentally scratched. He has no other medical problems and denies any surgical history. He is retired and enjoys gardening. He admits to spending most of his time outdoors.
Can you diagnose the condition in Case 2?
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A. Sebaceous carcinoma
B. Basal cell carcinoma
C. Amelanocytic melanoma
D. Squamous cell carcinoma
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