Comparison of the current characteristics and management of congenital biliary dilatation with and without a fetal diagnosis: report of 231 consecutive cases from the Kyushu Pediatric Surgery Study Group in Japan over the past decade

Abstract Purpose: The aim of this study is to investigate and to compare the current characteristics and management of congenital biliary dilatation (CBD) with and without fetal diagnosis (FD) based on a multicenter study at all institutions in Kyushu, Japan. Methods: A regional multicenter study was conducted among the institutions affiliated with the Kyushu Pediatric Surgery Study Group. Patients with CBD who underwent definitive surgery between 2014 and 2023 were enrolled. Results: All 28 affiliated institutions joined this multicenter study.