Unusual case of biliary neuroendocrine tumor

This case report showcases the imaging findings in a patient with a biliary neuroendocrine tumor (NET). NETs encompass a wide variety of diseases and comprise neoplasms arising from neural crest tissues during embryonic development. NETs can be found in different organs, including the gastrointestinal tract, adrenal medulla, pituitary gland, hypothalamus, and thyroid gland. Biliary NETs are uncommon and makeup <1% of all NETs.