title: False-negative endoscopic biopsy of colonic adenocarcinoma in a young man.
abstract: A 26-year-old man presented with intermittent bright red blood per rectum. His physical examination was unremarkable; however, because microcytic anemia was noted, the patient underwent colonoscopy. A large ascending colonic lesion was noted, a biopsy of which was negative for cancer. Nevertheless, the patient underwent a radical hemicolectomy. Adenocarcinoma of the cecum was found. This case report is an example of a false-negative endoscopic-directed biopsy. A review of recorded video-endoscopy assisted the family physician in appropriate management.
authors.affiliation: Bayfront Medical Center, St Petersburg, Florida, USA.
authors.forename: E
authors.initials: E
authors.lastname: Gillett
authors.forename: S
authors.initials: S
authors.lastname: Thomas
authors.forename: W M
authors.initials: WM
authors.lastname: Rodney
mesh_terms: D000230:Adenocarcinoma / Q000150:complications / Q000175:diagnosis* / Q000473:pathology*; D000328:Adult; D000740:Anemia / Q000209:etiology; D001706:Biopsy; D002432:Cecum / Q000473:pathology*; D003110:Colonic Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000473:pathology*; D003113:Colonoscopy; D005188:False Negative Reactions; D006471:Gastrointestinal Hemorrhage / Q000150:complications / Q000209:etiology; D006801:Humans; D008297:Male; D014743:Videotape Recording