Endometrial polyp

From patholines.org
Revision as of 22:51, 8 August 2022 by Mikael Häggström (talk | contribs) (→‎Microscopic evaluation: EIN)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

Author: Mikael Häggström [note 1]


On this resource, the following formatting is used for comprehensiveness:

  • Minimal depth
  • (Moderate depth)
  • ((Comprehensive))


Generally 10% neutral buffered formalin.

  See also: General notes on fixation

Microscopic evaluation

The main objectives are:

  • Making a diagnosis of endometrioid polyp. An endometrial polyp may be diagnosed in the presence of 2 of the following 3:
  • Thick-walled vessels
  • Collagenous stroma
  • Epithelium on at least 3 sides
  • Look for signs of atypia or malignancy.


Most importantly:

  • Benign versus malignant (or presence or absence of atypia.)
  • ((The size of the polyp.))
  • ((The type of epithelium at both the surface and gland coverings.))

Example of a minimal report:

Benign endometrial polyp.

  See also: General notes on reporting


  1. For a full list of contributors, see article history. Creators of images are attributed at the image description pages, seen by clicking on the images. See Patholines:Authorship for details.

Main page


  1. Owings, Richard A.; Quick, Charles M. (2014). "Endometrial Intraepithelial Neoplasia ". Archives of Pathology & Laboratory Medicine 138 (4): 484–491. doi:10.5858/arpa.2012-0709-RA. ISSN 1543-2165. 
  2. Stewart, Colin J.R.; Crum, Christopher P.; McCluggage, W. Glenn; Park, Kay J.; Rutgers, Joanne K.; Oliva, Esther; Malpica, Anais; Parkash, Vinita; et al. (2019). "Guidelines to Aid in the Distinction of Endometrial and Endocervical Carcinomas, and the Distinction of Independent Primary Carcinomas of the Endometrium and Adnexa From Metastatic Spread Between These and Other Sites ". International Journal of Gynecological Pathology 38: S75–S92. doi:10.1097/PGP.0000000000000553. ISSN 0277-1691. 
    - "Figures - available via license: Creative Commons Attribution 4.0 International"
  3. Rabban, Joseph T.; Gilks, C. Blake; Malpica, Anais; Matias-Guiu, Xavier; Mittal, Khush; Mutter, George L.; Oliva, Esther; Parkash, Vinita; et al. (2019). "Issues in the Differential Diagnosis of Uterine Low-grade Endometrioid Carcinoma, Including Mixed Endometrial Carcinomas ". International Journal of Gynecological Pathology 38: S25–S39. doi:10.1097/PGP.0000000000000512. ISSN 0277-1691. 
  4. Mohamed Mokhtar Desouki. Uterus - Stromal tumors - Leiomyoma. pathology Outlines. Topic Completed: 1 August 2011. Revised: 15 December 2019

Image sources