Gallbladder duplication

Case contributed by Ana Paula Bavaresco


Recurrent episodes of abdominal pain in the right hypochondrium, worsening after meals.

Patient Data

Age: 35 years
Gender: Female
  • two elongated saccular structures of anechoic content at the gallbladder fossa, without flow on the Doppler study, reflecting duplicated gallbladder
  • one gallbladder showing slight parietal thickening
  • small echogenic structures inside one of the gallbladder, which were mobile in decubitus changes (gallstones)
  • normal common bile duct with diameter averages 6 mm



Two separate gallbladders with their own cystic ducts. 

Presence of gallstones inside the upper gallbladder and in the respective cystic duct.

Case Discussion

Gallbladder duplication is a rare congenital malformation with an incidence of 1 in 4000 autopsies. There is a classification for duplication of the gallbladder:  bi-lobed or double gallbladder. The first has a septum or invaginating cleft that separates the lumen into two chambers, and the second has two separate gallbladders with their own cystic ducts. Gallbladder diverticula, gallbladder fold, Phrygian cap, choledochal cyst, are some of the differential diagnoses for this pathology. The symptoms of gallbladder duplication are no different from that of the single gallbladder. The indication for surgery is still controversial, however, if it is necessary to remove one gallbladder, the removal of the other is suggested.

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.