Fallopian tubes
Benign / nonneoplastic
Ovarian hilar cell heterotopia

Topic Completed: 1 April 2013

Revised: 23 August 2019

Copyright: (c) 2002-2019, PathologyOutlines.com, Inc.

PubMed Search: Ovarian hilar cell heterotopia

Nicole Riddle, M.D.
Jamie Shutter, M.D.
Page views in 2018: 498
Page views in 2019 to date: 536
Cite this page: Riddle N, Shutter J. Ovarian hilar cell heterotopia. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/fallopiantubeshilarcells.html. Accessed November 19th, 2019.
Definition / general
Heterotopic location of ovarian hilus cells within fallopian tube and mesosalpinx (Int J Gynecol Pathol 2011;30:46)
  • Rare, usually identified in association with other underlying pelvic pathology and in patients over 40
  • 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
Back to top