Accessory gallbladder

Last revised by Daniel J Bell on 9 Sep 2021

Accessory gallbladders are a rare anatomical variant occurring in 0.03% of cases (approximately 1 in 3000 people). They can arise from either the left or right hepatic ducts or both. Accessory gallbladders arise from a bifid diverticulum of the hepatic duct in the 5th or 6th week of development 1. Accessory gallbladders are associated with a higher incidence of pathologies.

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