Primary Gallbladder Neuroendocrine Tumors: Insights into a Rare Histology Using a Large National Database

Background Primary gallbladder neuroendocrine tumors(NETs) are rare, poorly understood cancers infrequently encountered at even the largest of tertiary referral centers. We therefore sought to identify a large cohort of patients with gallbladder NETs using a national database, with the aim of defining treatment modalities employed and survival associated with these uncommon malignancies.