Collaborative Hypertext of Radiology

carcinoid tumor

"rule of one-third"
- 1/3 of GI carcinoid in SB
- 1/3 ==> mets
- 1/3 have 2nd malignancy
- 1/3 multiple
90% from distal ileum or appendix
90% of appendicial tumors
desmoplastic reaction ==> kinking + angulation of SB
angio: intensely vascular lesions

Charles E. Kahn, Jr., MD - 2 February 1995
Last updated: 1 October 2013