Gynecologists long considered polycystic ovarian morphology and pelvic endometriosis to be distinct clinical entities. However, recent transvaginal ultrasound imaging demonstrates that PCOM and endometriosis frequently coexist in reproductive-age women. Understanding this diagnostic overlap is crucial for providing accurate clinical evaluations and personalized care.

Understanding PCOM and Endometriosis Overlap

A recent study evaluated 165 consecutive patients using standardized transvaginal ultrasound frameworks. Consequently, researchers found that 35% of patients with endometriosis also presented with concurrent polycystic ovarian morphology. Furthermore, younger age and lower body weight strongly correlated with this overlapping phenotype. Thus, clinicians should avoid assuming these conditions are mutually exclusive during pelvic imaging.

Clinical Implications for Gynecological Imaging

Ultrasonographers must carefully evaluate pelvic structures even when classic polycystic ovaries are present. Deep endometriosis occurred less frequently in patients with concurrent polycystic ovaries. Nevertheless, superficial and ovarian phenotypes showed similar frequencies across both groups. Therefore, performing thorough transvaginal ultrasound examinations ensures accurate diagnosis and optimized management strategies for young patients.

Frequently Asked Questions

Q1: How common is the coexistence of PCOM and endometriosis?

Studies show that approximately 35% of women diagnosed with endometriosis on transvaginal ultrasound also exhibit polycystic ovarian morphology.

Q2: Does younger age increase the likelihood of finding both conditions?

Yes, research indicates that younger patients with lower body weight have higher odds of presenting with both conditions simultaneously.

References

Romeo P et al. Challenging prior assumptions: coexistence of polycystic ovarian morphology and endometriosis on transvaginal ultrasound. Ultrasound Obstet Gynecol. 2026 Jul 31. doi: 10.1002/uog.70289. PMID: 42536999.