Interactive Case Study - May 2018

Question 1:

A 24-year-old African American male presented with a firm, non-painful, 9-millimeter nodule on the left shoulder that had been present for one year with slow, stable growth.

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Figure 5. CD63


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What is the best diagnosis?
 

A.	Cellular neurothekeoma

B.	Cutaneous leiomyosarcoma

C.	Epithelioid cell histiocytoma

D.	Intradermal Spitz nevus

E.	Plexiform fibrohistiocytic tumor