[Endoscopic biopsy using the electrocautery snare (macro particle biopsy)].
The biopsy snare has greatly improved the diagnostic and therapeutic possibilities in gastro-intestinal endoscopy. Experience with endoscopic polypectomy in the digestive tract has stimulated the use of the biopsy snare for the excision of larger particles. Thus, besides that larger particles can be obtained, also deeper excisions are possible. Usually muscularis mucosae and parts of the submucosal layers are included. Mucosal hyperplasia and submucosal processes can be recognized and analysed preoperatively. Even the resection of inoperable stenosing neoplasms is now possible. The results of 93 gastro-intestinal big particle biopsies are reported. The risk of big particle biopsy proved to be minimal; once bleeding occurred and was managed conservatively.
D001706:Biopsy / Q000295:instrumentation* / Q000379:methods; D004564:Electrocoagulation / Q000295:instrumentation*; D019723:Endoscopes; D006801:Humans
Endoskopische Biopsie mit der Elektrokauterschlinge (Makropartikelbiopsie).