title: Dissemination of latent colon adenocarcinoma after laparoscopic cholecystectomy.
abstract: The seeding of neoplasms at trocar sites has been reported with increasing frequency. A case is presented of a 68 year-old woman with metastatic seeding of nondiagnosed colon cancer at the umbilical trocar site used for a laparoscopic cholecystectomy. Histopathological examination showed metastatic adenocarcinoma probably of gastrointestinal origin. A colonoscopy performed at the same time revealed a 2-cm lesion at the hepatic flexure which was shown histologically to be a differentiated adenocarcinoma. Diffuse peritoneal carcinomatosis was also found on computerised tomography. It is presumed that the primary colon cancer existed prior to cholecystectomy.
authors.affiliation: Department of Surgery, Hospital São Paulo, Escola Paulista de Medicina, Federal University of São Paulo, SP, Brazil. jozevedo.dcir@epm.br
authors.forename: J L
authors.initials: JL
authors.lastname: Azevedo
authors.forename: D
authors.initials: D
authors.lastname: Mattos
authors.forename: M
authors.initials: M
authors.lastname: Ricci
authors.forename: O
authors.initials: O
authors.lastname: Azevedo
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology / Q000556:secondary*; D000368:Aged; D017081:Cholecystectomy, Laparoscopic / Q000295:instrumentation*; D003106:Colon / Q000473:pathology; D003110:Colonic Neoplasms / Q000473:pathology*; D005260:Female; D006801:Humans; D008099:Liver / Q000473:pathology; D008113:Liver Neoplasms / Q000473:pathology / Q000556:secondary*; D009366:Neoplasm Seeding; D010534:Peritoneal Neoplasms / Q000473:pathology / Q000556:secondary*; D010537:Peritoneum / Q000473:pathology