Ampulla of Vater
Other malignancies
Carcinoid

Author: Hanni Gulwani, M.D. (see Authors page)

Revised: 24 February 2016, last major update December 2012

Copyright: (c) 2003-2016, PathologyOutlines.com, Inc.

PubMed Search: Carcinoid[title]
Cite this page: Carcinoid. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/ampullacarcinoid.html. Accessed December 4th, 2016.
Definition / General
Case Reports
Micro Description
  • Classic features of carcinoid tumors; somatostatin producing tumors are often mucin+
Micro Images

Monotonous tumor cells with small round nuclei plus various images

Positive Stains
  • Chromogranin (60%), synaptophysin (60%), gastrin (20% vs. 75% of duodenal carcinoids, Hum Pathol 2001;32:1252)
  • Also somatostatin and pancreatic polypeptide
Differential Diagnosis
  • Adenocarcinoma
Additional References