Unknown #12

Show me the answer

Click here to see key histopathologic clues

A. Broadly distributed, asymmetrical melanocytic neoplasm, composed primarily of nested cells.

B. Nests of melanocytes forming confluent "bridges" between adjacent retia. Melanocytes often oriented parallel to junction.

C. Neoplasm tends to end abruptly in a melanocytic nest.

D. Retia have enveloping layered (lamellar) fibroplasia.

E. Dermal component with "maturation" (cells, nests become smaller with descent into the dermis).

F. Scattered melanocytic atypia, dusty melanin production, and anisokaryosis.