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  • Title: Prospective enteroscopic evaluation of jejunal polyposis in patients with familial adenomatous polyposis and advanced duodenal polyposis.
    Author: Alderlieste YA, Rauws EA, Mathus-Vliegen EM, Fockens P, Dekker E.
    Journal: Fam Cancer; 2013 Mar; 12(1):51-6. PubMed ID: 23054214.
    Abstract:
    Duodenal cancer originating from duodenal adenomas is an important cause of death in patients with familial adenomatous polyposis (FAP). Small intestinal adenomas also occur distal to the duodenum, and literature suggests that they mainly occur in the proximal jejunum in patients with severe duodenal polyp burden. We recently reported on 3 FAP-patients with a jejunal adenocarcinoma, all also harbouring advanced duodenal polyposis. Therefore we questioned whether FAP patients should also be submitted to endoscopic surveillance of the jejunum. The aim of this study was to determine the incidence and burden of jejunal adenomas in patients with FAP and advanced duodenal disease. All patients with FAP and advanced duodenal polyposis (Spigelman stage IV) at our academic centre were invited to undergo antegrade single balloon enteroscopy (Olympus SIF-Q180) with propofol-sedation. Patient characteristics, procedural characteristics (success, depth of insertion) and enteroscopic findings (number, size and pathology) are described. We identified 18 patients with FAP and duodenal polyposis Spigelman stage IV. Thirteen participated in the study with a mean age of 54 (30-64) years. SBE was successfully performed in 10 patients, with a mean depth of insertion of 72 cm beyond the ligament of Treitz. Adenomatous polyps were detected in 9 patients. Only one of them had extensive polyposis beyond Treitz, with large polyps covering up to one-third of the jejunal circumference. No cancers or adenomas with high-grade dysplasia were detected. Clinically significant jejunal polyposis in FAP is rare, even in high-risk patients with advanced duodenal disease. Routine jejunoscopy does not seem warranted in patients with FAP.
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