Endometrial curettings

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Author: Mikael Häggström [note 1]


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

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

Gross processing

  • Generally submit all tissue for microscopy, even larger volumes.
  • Look for products of conception if indicated from referral and/or history

Microscopic evaluation

Describe the anatomic/histologic type of epithelium.

Look mainly for:

Anatomic/histologic epithelium type

(Determine the type or phase of the endometrium:) edit

In contrast, endocervical mucosa typically consists of mucinous columnar epithelium and mucinous glands. Evaluate this like a cervical biopsy or cervical cone.

The phases of endometrium through the menstrual cycle:

If you want to specify the phase by day, then it's more accurate to state it as days past ovulation where applicable, since the follicular phase may vary substantially.

Hyperplasia, atypa and/or malignancy

  • Look for signs of atypia or malignancy:


Microscopy report

Example in a normal case:

(Endometrial curettings:
Benign proliferative endometrium and endocervical mucosa without significant histopathologic changes.)
Negative for neoplasia ((or viral cytopathic changes)).


  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.

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  1. Rao, Shalinee; Sundaram, Sandhya; Narasimhan, Raghavan (2009). "Biological behavior of preneoplastic conditions of the endometrium: A retrospective 16-year study in south India ". Indian Journal of Medical and Paediatric Oncology 30 (4): 131. doi:10.4103/0971-5851.65335. ISSN 0971-5851. 
    - Figure- available via license: Creative Commons Attribution 2.0 Generic
  2. 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. 
  3. 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"
  4. 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. 

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