Unicystic Mucoepidermoid Carcinoma: A Pitfall for Clinical and Pathologic Diagnosis

Figure 2

Histological and molecular features of type A, type B MEC, GOC, and CA. (a) Type A UC-MEC (HE ×20); (b) MAML-2 fusion positive in type A UC-MEC (×40), arrowheads indicate MAML2-positive cells; (c) type B UC-MEC (HE ×20); (d) MAML-2 fusion positive in type B UC-MEC (×40), arrowheads indicate MAML2-positive cells; (e) GOC (HE ×20); (f) MAML-2 fusion negative in GOC (×40), arrowheads indicate MAML2-nagetive cells. (g) CA (HE ×40); (h) MAML-2 fusion negative in CA (×40), arrowheads indicate MAML2-nagetive cells.

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