Fallopian tubes
Benign or nonneoplastic conditions
Ovarian hilar cell heterotopia


Topic Completed: 1 April 2013

Revised: 20 December 2018

Copyright: (c) 2002-2018, PathologyOutlines.com, Inc.

PubMed Search: Ovarian hilar cell heterotopia
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Cite this page: Riddle N, Shutter J. Ovarian hilar cell heterotopia. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/fallopiantubeshilarcells.html. Accessed May 26th, 2019.
Definition / general
Heterotopic location of ovarian hilus cells within fallopian tube and mesosalpinx (Int J Gynecol Pathol 2011;30:46)
Epidemiology
  • Rare, usually identified in association with other underlying pelvic pathology and in patients over 40
Sites
  • Present in 0.5% of fallopian tubes or paratubal tissue, usually in fimbriae
Gross description
  • May be incidental or a nodule may be seen
Microscopic (histologic) description
  • Usually a discrete, circumscribed nodule(s) or clusters of hilus cells
  • May have an infiltrative (rather than a nested) growth pattern
Differential diagnosis
  • Can mimic metastatic carcinoma
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