Fig. 6From: Goblet cell carcinoid of the rectum: a case reportAdenocarcinoma components stained positive for CEA (a), CK20 (b) as epithelial marker, and negative for synaptophysin (c). Goblet-like cells stained positive for CEA (e) and CK20 (f) as epithelial markers, synaptophysin (g) as a neuroendocrine marker by immunohistochemistry. Ki-67 had a different pattern from the adenocarcinoma components (d) and GCC (h) being diffuse and peripheral in the nests for each area respectively (×20)Back to article page