title: Polypoid gastrointestinal stromal tumor of small bowel metastasizing to mesenteric lymph nodes: a case report.
abstract: Gastrointestinal stromal tumor (GIST) is the commonest gastrointestinal mesenchymal tumor, which rarely metastasizes to lymph nodes. Therefore, unlike cases of adenocarcinoma, lymphadenectomy is seldom warranted. We describe an unusual case of a polypoid GIST of the small bowel which metastasized to the regional mesenteric lymph nodes at the time of primary surgery. The patient was a 79-year-old female who presented with partial bowel obstruction and anemia. The presented case has three unusual features, as the tumor was grossly pedunculated, microscopically pleomorphic, and featured mesenteric lymph node metastasis at the time of diagnosis.
authors: Department of Pathology, Sunnybrook Health Sciences Center, University of Toronto, 2075 Bayview Avenue, Room E 416, Toronto, ON, Canada M4N 3M5.
authors: Dina
authors: D
authors: El Demellawy
authors: Phoebe
authors: P
authors: Shokry
authors: Alan
authors: A
authors: Ing
authors: Mahmoud
authors: M
authors: Khalifa
mesh_terms: D000368:Aged; D018952:Antigens, CD34 / Q000378:metabolism; D001161:Arteriosclerosis / Q000473:pathology; D001026:Coronary Artery Bypass; D016894:Endarterectomy, Carotid; D005260:Female; D005756:Gastritis / Q000382:microbiology; D046152:Gastrointestinal Stromal Tumors / Q000378:metabolism / Q000473:pathology*; D016481:Helicobacter Infections; D006801:Humans; D006973:Hypertension / Q000473:pathology; D007150:Immunohistochemistry; D007417:Intestinal Polyps / Q000473:pathology; D007421:Intestine, Small / Q000378:metabolism / Q000473:pathology*; D008207:Lymphatic Metastasis / Q000473:pathology*; D008643:Mesentery / Q000473:pathology*; D019009:Proto-Oncogene Proteins c-kit / Q000378:metabolism; D014746:Vimentin / Q000378:metabolism
chemical_list: D018952:Antigens, CD34; D014746:Vimentin; D019009:Proto-Oncogene Proteins c-kit