Septate gallbladder

Septate gallbladder is a congenital variant where there may be a single septum or multiple septa in the gallbladder splitting its lumen into several parts. There can be communication between the separated parts of gallbladder through small pores. The condition is mostly asymptomatic and incidentally detected on imaging.

Septate gallbladder is an independent entity from the junctional fold, where the gallbladder wall folds on itself. Junctional folds are usually thick and incomplete while septa are thin and may be complete.

Gallbladder multiple septa with multiple small polyps and comet-tail artifacts can be seen in adenomyomatosis.