[Abdominal carcinoid: various locations and clinical course].

Carcinoid tumours are rare neoplasms and their behaviour seems to change with the localization; in fact, appendiceal and rectal carcinoids show a better long-term survival than the more aggressive ileal and colonic analogues. The Authors report their experience in the surgical treatment of 13 G.I. carcinoid neoplasms, in which the clinical course was sometimes unpredictable suggesting there is much to discover about the behaviour of these particular tumours.