MANEC tissues were stained with immunohistochemistry. The tissues were immunopositive for CK (A), CK20 (B), P53 (C), CK7 (D), CDX-2 (E), Ki-67 (F), E-cad (G), CD56 (H), CEA (I), Syn (J), villin (K), CgA (L) and immunonegative for CA125 (M), NSE (N), ER (O), PR (P) in MANEC tissues (100×).