Figure 2

Histopathology of the Endoscopic Colonic Biopsy Hematoxylin and eosin stained, medium power, magnification ×250. A. Adenocarcinoma of the colon demonstrated by * – individual nests of "garlandlike" masses with ↑ – punched out lumens and black triangle – central necrotic debris. B. Metastatic colonic adenocarcinoma in the lesser curvature of the stomach as seen by * – malignant epithelium recapitulating colonic glands associated with ↑ – benign gastric glands. C. Metastatic colonic adenocarcinoma in the lesser curvature of the stomach confirmed by immunohistochemical staining of CK20 positive colonic epithelium with negative staining in the gastric epithelium.