Diagnosis and treatment of a choledochal cyst during pregnancy. A case Report

Background: Choledochal cysts are a rare pathology of the biliary tree, more commonly found in females and predominantly presented in childhood. Their occurrence in adulthood, particularly during pregnancy, is rare, often presenting with nonspecific signs and symptoms, which can lead to a delay in diagnosis. We present the case of a 29-year-old female patient who began experiencing symptoms at 8 weeks of gestation. She was initially misdiagnosed with acute lithiasic cholecystitis. During intervention at 12 weeks of gestation, a Type IVa choledochal cyst was found. Initial management involved decompressing the biliary tract via a T-tube due to the complexity of the case. Subsequently, after two episodes of cholangitis, surgical management was decided before the resolution of the pregnancy, through resection of the choledochal cyst and Roux-en-Y hepaticojejunostomy. Currently, her clinical status is favorable; she completed her pregnancy at term via scheduled cesarean section without apparent maternal-fetal complications. Keywords: Choledochal cysts.