Bilobate gallbladder Double gallbladder Gallbladder septated HP:0005608 During the fifth or early sixth embryonic week, occasionally, the gallbladder primordium bifurcates and results in duplication of gallbladder. Duplication results from a split primordium whilst a true accessory gallbladder results from an extra primordium. There are no specific symptoms or signs associated with multiple gallbladders. Bilobed gallbladder Gallbladder duplication UMLS:C1846422 The presence of a bilobed gallbladder, related to a duplication of the gallbladder primordium. Septate gallbladder