EP24.29: Diagnosis of parametrial endometriosis with transvaginal ultrasonography

F. Buonomo, Enrico Dalla Bona, L. Ciampi, Manuela Giangreco, Giuseppe Ricci
In: Ultrasound in Obstetrics & Gynecology · 2024 · vol. 64(S1) , pp. 352–353 · doi:10.1002/uog.29035 · PMID:39249010 · W4402358959
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Transvaginal ultrasonography demonstrated good specificity for diagnosing anterior and lateral parametrial endometriosis and higher sensitivity for posterior involvement compared to surgical-pathological findings.

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This retrospective study evaluated the diagnostic performance of transvaginal ultrasonography in identifying anterior, lateral, and posterior parametrial endometriosis among 36 patients with pathological confirmation. The authors compared preoperative ultrasound findings against surgical-pathological results to determine sensitivity, specificity, positive predictive value, and negative predictive values for each anatomical site. Results indicated that while specificity was high for anterior and lateral lesions, sensitivity was low; conversely, posterior parametrial involvement demonstrated higher sensitivity but lower specificity. The researchers concluded that although ultrasound is a useful preoperative tool, its variable accuracy across different compartments necessitates further studies to validate these findings. This paper is centrally about endometriosis — specifically focusing on the sonographic diagnosis of deep infiltrating disease within the parametrium.

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Abstract

This study evaluates ultrasound in the diagnosis of anterior, lateral, posterior parametrial endometriosis. We retrospectively analysed 36 patients with pathological diagnosis of endometriosis from Jan 2022 to March 2023. The performances of preoperative TVS diagnosis in evaluating the anterior, the lateral and the posterior parametria with regarding to assess the sensitivity (SE), specificity (SP), positive predictive value (PPV), and negative predictive value (NPV), in comparison with the surgical-pathological findings were evaluated. Although our are few cases, ultrasound can detect endometriosis of the parameters, with a lower sensitivity and a much higher specificity for the anterior and lateral sites, while in the posterior compartment the sensibility is higher. Ultrasound is a useful tool in the preoperative assessment of parametrial involvement, although further studies are needed. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
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Objectives

This study evaluates ultrasound in the diagnosis of anterior, lateral, posterior parametrial endometriosis.

Methods

We retrospectively analysed 36 patients with pathological diagnosis of endometriosis from Jan 2022 to March 2023. The performances of preoperative TVS diagnosis in evaluating the anterior, the lateral and the posterior parametria with regarding to assess the sensitivity (SE), specificity (SP), positive predictive value (PPV), and negative predictive value (NPV), in comparison with the surgical-pathological findings were evaluated.

Results

- Sensitivity, specificity, PPV, NPV, for the sonographic diagnosis of anterior parametrial endometriosis were 50%, 96.9%, VPP = 35, VPN = 50 respectively. - Sensitivity, specificity, PPV, NPV, for the sonographic diagnosis of lateral parametrial endometriosis were 43,75%, 95%, VPP = 87,5, VPN = 67,86 respectively. - Sensitivity, specificity, PPV, NPV, for the sonographic diagnosis of posterior parametrial endometriosis were 88,46%, 60%, VPP = 85,19 VPN = 66,67 respectively.

Conclusions

Although our are few cases, ultrasound can detect endometriosis of the parameters, with a lower sensitivity and a much higher specificity for the anterior and lateral sites, while in the posterior compartment the sensibility is higher. Ultrasound is a useful tool in the preoperative assessment of parametrial involvement, although further studies are needed.

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endometriosis

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last seen: 2026-06-10T17:14:06.276822+00:00
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