title: Endoscopic removal of a pedunculated early duodenal cancer: diagnostic value of endoscopic ultrasound.
abstract: A 79-year-old Japanese woman was admitted to our hospital for evaluation of a polypoid lesion in the second portion of the duodenum. Radiographic and endoscopic examinations of the upper gastrointestinal tract indicated that this mass was pedunculated and had a nodular surface. Endoscopic ultrasonography demonstrated a hypoechoic tumor limited to the mucosa without lymph node involvement. Endoscopic polypectomy was performed. Histologic examination showed a tubular adenocarcinoma arising in an adenoma with invasion limited to the mucosa. Findings were consistent with complete endoscopic resection. Follow-up over a 12-month period has disclosed no evidence of tumor recurrence. Endoscopic polypectomy using information from endoscopic ultrasonography would appear to be a safe and effective method for diagnosis and treatment of pedunculated early duodenal cancers.
authors.affiliation: First Department of Internal Medicine, Aso Iizuka Hospital, Iizuka, Japan.
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Yoshimoto
authors.forename: Kazuya
authors.initials: K
authors.lastname: Akahoshi
authors.forename: Kazuo
authors.initials: K
authors.lastname: Nakanishi
authors.forename: Hajime
authors.initials: H
authors.lastname: Nawata
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging* / Q000601:surgery*; D000368:Aged; D004379:Duodenal Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery*; D019160:Endosonography; D005260:Female; D006801:Humans