title: [Endosonography of tumors of the upper gastrointestinal tract: is routine use justified?].
abstract: Major indications of endoscopic ultrasound (EUS) are staging of carcinomas of the oesophagus, stomach, and pancreas, lymphomas of the stomach and the diagnosis of submucosal tumors. Based on a meta-analysis, the accuracy of EUS is 84% in the T-stage of oesophagus carcinoma (1154 patients) and 77% (1035) in the N-stage, and of stomach carcinoma 80% (2699) and 70% (1207), respectively. Drawbacks of EUS: tumor stenosis which cannot be passed by the endoscope; the inability to distinguish between benign and malignant stomach ulcera and the diagnosis of lymph nodes.
authors.affiliation: Chirurgische Klinik und Poliklinik, Klinikum Innenstadt, Universität München.
authors.forename: W G
authors.initials: WG
authors.lastname: Zoller
authors.forename: M
authors.initials: M
authors.lastname: Siebeck
authors.forename: L
authors.initials: L
authors.lastname: Schweiberer
mesh_terms: D019160:Endosonography; D004938:Esophageal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D006801:Humans; D008198:Lymph Nodes / Q000000981:diagnostic imaging / Q000473:pathology; D008207:Lymphatic Metastasis; D009367:Neoplasm Staging; D012680:Sensitivity and Specificity; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery
vernacular_title: Endosonographie bei Tumoren des oberen Gastrointestinaltraktes: Routinemässiger Einsatz gerechtfertigt?