MCQ – 88874

Question

A 65-year-old man comes to the physician because he is worried about a mole on his right forearm. He has had the mole for several years, but it has grown in size in the past 3 months. Physical examination shows a hyperpigmented plaque with irregular borders and small area of ulceration. Histopathologic analysis of a full-thickness excisional biopsy confirms the diagnosis of malignant melanoma. Invasion of which of the following layers of skin carries the highest risk of mortality for this patient?

A. Stratum corneum

B.

Papillary dermis

C.

Hypodermis

D.

Stratum basale

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