Tumor by Organ
Gastrointestinal Tract
Esophagus
Adenocarcinoma
Adenoid cystic carcinoma
Carcinosarcoma
Leiomyosarcoma
Melanoma, mucosal
Merkel cell carcinoma of the oesophagus
Oesophageal epithelium
Stomach
Gastric adenocarcinoma
Gastrointestinal autonomic nerve tumor
Intestine
Carcinoid tumors of duodenum and ampulla of Vater
Gastrointestinal stromal tumor of the small intestine, including duodenum
Colon
Benign fibroblastic polyps of the colon
Colonic adenocarcinoma
Combined hepatocellular-cholangiocarcinoma
Gastrointestinal stromal tumor of the colon
Malignant carcinoid
Mucous adenocarcinoma
Paget's disease
Rectum and Anus
Gastrointestinal stromal tumor of the anorectum
Melanoma, mucosal (rectum)