Ovary tumor
Germ cell tumors
Carcinoid tumors

Author: Shahrzad Ehdaivand, M.D. (see Authors page)

Revised: 22 June 2016, last major update December 2012

Copyright: (c) 2002-2016, PathologyOutlines.com, Inc.

PubMed Search: Ovary carcinoid tumors [title]

Related: Mucinous (goblet cell) carcinoid, Strumal carcinoid
Cite this page: Carcinoid tumors. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/ovarytumorcarcinoid.html. Accessed October 22nd, 2016.
Definition / General
  • May be a form of monodermal teratoma; 15% have cystic teratoma or mucinous neoplasm in contralateral ovary
  • Good prognosis if ovarian primary
  • 1/3 are associated with carcinoid syndrome; may cause constipation due to secretion of peptide YY
  • References: Arch Pathol Lab Med 1987;111:440
Case Reports
  • Excision, although mucinous types are more aggressive
Gross Description
  • Mean 10 cm, yellow, solid cut surface; usually unilateral
Gross Images
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Insular tumor

Micro Description
  • Resembles carcinoid tumors elsewhere
  • Patterns are insular (resembles appendix or small bowel tumors), trabecular (resembles stomach or rectal tumors), strumal (below), mucinous
  • May have abundant fibrous stroma
  • Rarely has prominent pleomorphism, mucinous features (below) or signet ring pattern
Micro Images
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Insular tumor

Trabecular tumor

Negative Stains
Electron Microscopy Description
  • Neurosecretory granules
Differential Diagnosis