Successful liver transplantation using a whole liver graft with gallbladder agenesis: First report in pediatric liver transplantation.

Gallbladder agenesis (GA) is a rare congenital condition, occurring in approximately 40/100.000. It is likely due to an embryologic mishap in the development of the gallbladder bud and can be associated with other congenital variations in biliary anatomy. However, the liver likely suffers no functional impairment and can be safely used for transplantation. To the best of our knowledge, this is the first case report describing a pediatric liver transplantation (PLT) using a graft with GA. A 10-year-old boy with methylmalonic aciduria underwent isolated liver transplant with a deceased graft from a donor with no relevant medical or surgical history and normal laboratory tests. During the back-table liver preparation procedure, no evidence of gallbladder was found, raising the possibility of a GA, confirmed by intraoperative cholangiography. The liver transplantation procedure was uneventful despite the particularly rare combination of biliary tree anatomic distribution found in the cholangiography. At 1 year of follow-up, there were no clinical, laboratory, or imagological signs of bile leaks or anastomotic site stricture. The present report highlights the importance of the accurate knowledge of the vasculobiliary anatomic variation, particularly in extremely rare cases, such as GA, and in complex hepatobiliary procedures, such as PLT. In our opinion, grafts with GA should not be discarded for transplantation.

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