Ampulla of Vater
Other malignancies
Carcinoid


Topic Completed: 1 December 2012

Revised: 14 January 2019

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PubMed Search: Carcinoid[title]
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Cite this page: Gulwani H. Carcinoid. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/ampullacarcinoid.html. Accessed April 23rd, 2019.
Definition / general
Case reports
Microscopic (histologic) description
  • Classic features of carcinoid tumors; somatostatin producing tumors are often mucin+
Microscopic (histologic) images

Images hosted on other servers:

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
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