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Epithelioid Angiomyolipoma : Melan-A

slide 36 of 65

Comments:
Angiomyolipomas express melanocytic markers such as HMB-45 and Melan-A (shown here). Ultrastructurally, this corresponds to the presence of premelanosome-like organelles. The expression of melanocytic markers is more frequently and strongly seen with epithelioid variant of AML.

slide 36 of 65