Original Articles: PDF OnlySonographic and Scintigraphic Evaluation of Gallbladder DuplicationMcDONALD, KATHLEEN L. M.D.; LWIN, TINT M.D. Author Information From the Department of Radiology, South Hills Health System, Pittsburgh, Pennsylvania Clinical Nuclear Medicine: October 1986 - Volume 11 - Issue 10 - p 692-693 Buy Abstract The incidence of unilobar or bilobar pathology is disproportionately high in patients with duplication of the gallbladder. The results of ultrasound and Tc-99m DISIDA studies in one case of gallbladder duplication are presented. An awareness of gallbladder anomalies may improve the accuracy of hepatobiliary imaging by eliminating some false-negative results. © Lippincott-Raven Publishers.