Diagnostic Approach and Management of Endometrial Polyps

Diagnostic Methods

Transvaginal ultrasound (TVUS) should be the initial imaging modality to assess endometrial thickness and characterize the polyp and fluid, as recommended by the American College of Radiology and Annals of Oncology 1, 2
An endometrial thickness ≤3mm has a high negative predictive value for endometrial cancer in postmenopausal women, according to Annals of Oncology 3, 2
Sonohysterography can help distinguish between focal (polyp) and diffuse pathology, as suggested by the Journal of the American College of Radiology and Annals of Oncology 1, 2
Endometrial biopsy is essential for definitive diagnosis, with Pipelle or Vabra devices having high sensitivity (99.6% and 97.1% respectively) for detecting endometrial carcinoma, as reported by Annals of Oncology 3, 2

If malignancy is found, further staging and treatment according to endometrial cancer guidelines should be initiated, as recommended by the National Comprehensive Cancer Network 5
Evaluation should include assessment for Lynch syndrome in patients with endometrial cancer, particularly if diagnosed at an earlier age, as suggested by the National Comprehensive Cancer Network 5

Obesity, hypertension, diabetes mellitus, and tamoxifen use are additional risk factors for endometrial polyp malignancy, as reported by Annals of Oncology 6

Relying solely on TVUS without histopathological confirmation can miss malignancy, as warned by the Journal of the American College of Radiology and Annals of Oncology 1, 2
A negative endometrial biopsy in a symptomatic patient should not be considered definitive due to the 10% false-negative rate, as noted by the National Comprehensive Cancer Network 4, 5