Neuroendocrine tumours of rare location

Neuroendocrine tumours (NETs) arising from dispersed endocrine system may originate from almost every location, although they are most commonly found in the gastrointestinal tract and respiratory system. NETs are considered as particularly rare if they constitute less than 1% of all neuroendocrine tumours. The aim of the paper is to present ten rare NETs from the database of the Endocrinology Department of the Jagiellonian University, Medical College: 4 NETs of the ampulla of Vater, 2 of the gallbladder, and 1 of the ovary, sphenoid sinus, Meckel's diverticulum, and epiglottis. The clinical presentation of such tumours and their management are discussed.