Uterus
Epithelial tumors - benign
Adenomyoma

Author: Vijay Shankar, M.D. (see Authors page)

Revised: 8 February 2016, last major update February 2016

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

PubMed Search: Adenomyoma [title] uterus
Definition / General
  • A circumscribed nodular aggregate of benign endometrial glands surrounded by endometrial stroma, with leiomyomatous smooth muscle bordering the endometrial stromal component
  • See also adenomyosis (diffuse process), atypical polypoid adenoma
Essential Features
  • Circumscribed lesion in the uterus
  • Benign endometrial glands and stroma bordered by leiomyomatus smooth muscle
  • Abnormal vaginal bleeding is the most common presenting feature
Terminology
  • Adenomyoma, cystic adenomyoma, polypoid adenomyoma
Epidemiology
  • Ages 22 - 60 years
Sites
Clinical Features
  • Presents as abnormal vaginal bleeding
  • Severe cases in young women can manifest with infertility
  • Diagnosed with radiology and histopathology
Case Reports
Treatment
Clinical Images

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Endometrial collection

Gross Description
  • Soft to firm, grey white cut section
  • May show small cystic spaces filled with brownish fluid
  • Can be polypoid: polypoid adenomyoma
  • Can be predominantly cystic: cystic adenomyoma (Obstet Gynecol Sci 2014;57:176)
Gross Images

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Trabeculated mass

Micro Description
Micro Images

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Benign endometrial glands



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Various images

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Gross and micro images

Cytology Description
Positive Stains
Additional References