Rare Case of Gallbladder Neuroendocrine Carcinoma.

Neuroendocrine tumors (NET) are very uncommon, though when seen, they are typically found within the gastrointestinal tract. Rarely NETs can be seen within the lumen of the gallbladder. An 83-year-old woman presented to our hospital with vague abdominal pain and distention. She was found to have a mass within her gallbladder on imaging, and she was treated with surgical resection. Pathology revealed a gallbladder NET with lymphovascular involvement. NETs of the gallbladder remain a rare occurrence with a limited number of previous case reports.