ecrin-mdr-crcClinical1978Colorectal CarcinomaDesmoid TumorFibromatosis, AggressiveGardner SyndromeColorectal NeoplasmsColorectal CarcinomaDesmoid TumorFibromatosis, AggressiveGardner SyndromeColorectal NeoplasmsObservationalhttps://newmdr.ecrin.org/Study/21015761ResectionColonECRIN MDRCompletedfalseA Cohort Study of Patients Treated With Brachytherapy for Selected Desmoid Patients in Gardner SyndromeThe purpose of this study is to assess the long-term outcome in a cohort of Gardner-Syndrome patients receiving prophylaxis and treatment for intestinal and non-intestinal tumors.1978-01-152101576NCT01286662