Evidence map›Paper›PMID 41686339›Full record

ArticleArchives of gynecology and obstetrics2026

The assessment of association between endometrioma size and other endometriosis compartments according to #ENZIAN classification.

Elvin Piriyev, Ahmet Namazov, Islam Mahalov, Flora Huseynova, Gad Liberty, Ofer Gemer, Sven Schiermeier, Thomas Römer, Jörg Keckstein

Abstract readMulticenter Study
In one paragraph

Article in Archives of gynecology and obstetrics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Elvin PiriyevUniversity Witten-Herdecke, Witten, Germany. piriyev.elvins@gmail.com.ORCID 0000-0002-2544-4770
Ahmet NamazovDepartment of Obstetrics and Gynecology, Barzilai University Medical Center, Ashkelon, Israel.
Islam MahalovI. M. Sechenov First State Moscow Medical University Baku Branch, Baku Health Center, Baku, Azerbaijan.
Flora HuseynovaI. M. Sechenov First State Moscow Medical University Baku Branch, Baku Health Center, Baku, Azerbaijan.
Gad LibertyDepartment of Obstetrics and Gynecology, Barzilai University Medical Center, Ashkelon, Israel.
Ofer GemerDepartment of Obstetrics and Gynecology, Barzilai University Medical Center, Ashkelon, Israel.
Sven SchiermeierUniversity Witten-Herdecke, Witten, Germany.
Thomas RömerDepartment of Obstetrics and Gynecology, Academic Hospital Cologne Weyertal University of Cologne, Weyertal 76, 50931, Cologne, Germany.
Jörg KecksteinEndometriosis Clinic Dres. Keckstein, Villach, Austria.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionEndometriomas are common in endometriosis and may coexist with deep pelvic disease. This study aimed to assess the association between endometrioma size and other endometriosis localizations using the #ENZIAN classification. STUDY

designThis multicenter study included women who underwent laparoscopic surgery for endometriomas between 2021 and 2024, with available surgical reports defining the #ENZIAN classification. Endometriomas were categorized as O1/2 (< 7 cm) or O3 (≥ 7 cm). Other endometriosis localizations were compared between the study groups.

resultsA total of 269 women underwent surgery for endometriosis involving endometriomas. Of these, 42 had #ENZIAN O3 endometriomas, with a significantly higher rate of unilateral cysts compared to women with #ENZIAN O1/2 (92.8% vs. 68.2%, p = 0.0011). After excluding bilateral cases, 194 women with unilateral endometriomas were analyzed: 39 with #ENZIAN O3 and 155 with #ENZIAN O1/2. Women with O3 lesions were significantly younger (31.5 ± 5.9 vs. 34.5 ± 6.6 years; p = 0.011). The rate of adenomyosis (#ENZIAN F-A) was significantly lower in the O3 group (41% vs. 69%, p = 0.0012), as was rectal involvement (#ENZIAN C; 7.7% vs. 23.8%, p = 0.025). The prevalence of severe pelvic wall disease (T/B ≥ 2) did not differ significantly between groups.

conclusionSmaller endometriomas (O1/2) are associated with more extensive pelvic disease, including higher rates of adenomyosis, rectal involvement, and pelvic adhesions, whereas larger endometriomas (O3) may represent a more localized disease phenotype. These findings support the use of the #ENZIAN classification for more accurate preoperative assessment and individualized surgical planning.

Indexed as

EndometriosisAdenomyosisAdultFemaleHumansLaparoscopyRetrospective StudiesDIEEndometriomaEndometriosis#ENZIANSize

Identifiers

PMID41686339
PMCPMC12904876

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