Investigations
During pathologic examination, gallbladder measured 9cm x 4cm containing multiple small yellowish stones. The mucosa was green, and the maximum wall thickness was 2mm. An area of wall thickening measuring 7mm x 4mm x 3mm was noted in the neck region of the gallbladder. Microscopic examination revealed characteristics indicative of acute gangrenous cholecystitis. Regarding the wall thickening in the neck area described macroscopically, histopathology confirmed the presence of heterotopic pancreatic tissue composed of acini and ducts (exocrine pancreatic tissue only; no islets of Langerhans were detected). There was no evidence of malignancy or dysplasia in any of the sections examined.