Risk factors for advanced duodenal and ampullary adenomatosis in familial adenomatous polyposis: a prospective, single-center study
Risk factors for advanced duodenal and ampullary adenomatosis in familial adenomatous polyposis: a prospective, single-center study Authors M. Sulbaran 1 , F. G. Campos 2 , U. Ribeiro Jr. 2 , H. S. Kishi 3 , P. Sakai 1 , E. G. H. de Moura 1 , L. Bustamante-López 2 , M. Tomitão 3 , S. C. Nahas 2 , I. Cecconello 2 , A. V. Safatle-Ribeiro 1 ABSTRACT Background and study aims To determine the clinical features associated with advanced duodenal and ampullary adenomas in familial adenomatous polyposis. Secondarily, we describe the prevalence and clinical significance of jejunal polyposis. Patients and methods This is a single center, prospective study of 62 patients with familial adenomatous polyposis. Duodenal polyposis was classified according to Spigelman and ampullary adenomas were identified. Patients with Spi- gelman III and IV duodenal polyposis underwent balloon as- sisted enteroscopy. Predefined groups according to Spigel- man and presence o...