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Serafinella P. Cannavò, MD; Mario Vaccaro, MD, PhD; Biagio Guarneri, MD
University of Messina, Messina, Italy

Arch Dermatol. 2001;137:957-962.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

REPORT OF CASE

A 83-year-old man presented with a 2-month history of numerous dome-shaped papules on his right arm. His family history and his medical history were noncontributory.

Physical examination showed firm, partly confluent, 2-mm to 1.5-cm red papules and nodules in a sleevelike arrangement with a smooth, shiny surface and well-defined margins (Figure 1). The findings of the rest of the physical examination were unremarkable. Laboratory tests showed an erythrocyte sedimentation rate of 34.50 mm in the first hour (reference range, 4-15 mm/h).

Figure 1.

A biopsy was performed (Figure 2 and Figure 3).

Figure 2.

Figure 3.

What is your diagnosis?

Diagnosis: Metastatic melanoma of unknown primary origin.

Histologic examination showed a scantily pigmented dermal nodule, characterized by considerable nuclear polymorphism. The cells were arranged as sheets, with no maturation of cells with descent into the dermis. There was a narrow zone of . . . [Full Text of this Article]

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