Transverse septum of the gallbladder.
D000328:Adult; D000368:Aged; D002763:Cholecystectomy; D002764:Cholecystitis / Q000150:complications*; D005260:Female; D005704:Gallbladder / Q000002:abnormalities*; D006801:Humans; D008297:Male; D008875:Middle Aged