title: [Large colonic polyp: endoscopic or surgical removal?].
abstract: 93 neoplastic polyps measuring more than 2 cm in diameter have been removed from the colon by endoscopy. 15% of the polyps showed severe atypia (focal carcinoma), and in 15% an invasive carcinoma was found. Polypectomy was complicated in 14 cases by bleeding, in 12 cases it was cured  by endoscopy. In 1 case in which the colon was injured by coagulation the lesion healed spontaneously. The surgery rate due to complications of the endoscopic removal procedure or due to invasive carcinoma was 7% for the polyps with a diameter of 2-3 cm, 15% for those of 3-5 cm and 50% for polyps with a diameter of more than 5 cm. It is therefore suggested that neoplastic polyps of more than 5 cm in diameter should be removed by endoscopy in high risk patients only.
mesh_terms: D002277:Carcinoma / Q000601:surgery; D003110:Colonic Neoplasms / Q000601:surgery*; D004564:Electrocoagulation / Q000009:adverse effects; D004724:Endoscopy / Q000009:adverse effects; D006471:Gastrointestinal Hemorrhage / Q000209:etiology; D006801:Humans; D007417:Intestinal Polyps / Q000601:surgery*; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000601:surgery; D012811:Sigmoid Neoplasms / Q000601:surgery
vernacular_title: Der grosse Kolonpolyp--endoskopische oder chirurgische Entfernung?