Immunohistochemical features of polypoid adenomyoma of endocervical type using consecutive sections ((a) MUC1, (b) MUC5AC, inset: MUC6, (c) CEA, and (d) ER). The mucin-producing columnar cells express MUC1 (a), MUC5AC (b), and CEA (c). ER is positive in the nuclei of both glandular cells and smooth muscle cells (d). MUC6 reactivity is detected in small glands in other microscopic fields (inset).
