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Focal endometrial stromal hyperplasia
C J Stewart1, B A Michie, J H Kennedy
1Department of Pathology, Glasgow Royal Infirmary, Dundee, UK.
Histopathology
|September 3, 1998
Summary
Multiple endometrial biopsies in a patient revealed benign stromal proliferative lesions, mimicking low-grade stromal neoplasms. These lesions were ultimately identified as focal endometrial stromal hyperplasia, not malignancy.
Area of Science:
- Gynecologic Pathology
- Endometrial Histopathology
Background:
- Endometrial stromal lesions can present diagnostic challenges in histopathology.
- Distinguishing benign hyperplasia from low-grade malignancy is crucial for patient management.
Observation:
- A 39-year-old woman presented with menorrhagia and dysmenorrhea.
- Multiple endometrial biopsies and subsequent hysterectomy showed multifocal benign stromal proliferative lesions.
- Lesions exhibited increased cellularity and spindle cell morphology without mitotic activity or pleomorphism.
Findings:
- Biopsy specimens raised suspicion for low-grade endometrial stromal neoplasm.
- Hysterectomy confirmed no evidence of malignancy.
- Foci of ovarian and cervical stromal endometriosis were also identified.
Implications:
- Focal endometrial stromal hyperplasia can mimic endometrial stromal nodule or sarcoma on biopsy.
- Accurate histopathological interpretation is vital to avoid misdiagnosis of endometrial stromal neoplasms.
- Understanding these mimics improves diagnostic accuracy in gynecologic pathology.