Recurrent Mixed Neuroendocrine-Non-Neuroendocrine Neoplasm in the Gallbladder: A Case Report.

Mixed neuroendocrine-non-neuroendocrine neoplasms (MiNEN) of the gallbladder are rare with no established therapeutic strategies. We report a case of recurrent gallbladder MiNEN from a population with a low incidence of gallbladder carcinomas, a review of the current therapeutic options, and recent updates on the nomenclature proposed by the World Health Organization in 2017.