Prevalence of occult endometrial carcinoma in patients with endometrial intraepithelial neoplasia who underwent hysterectomy

Abstract Objectives To determine the prevalence of occult endometrial carcinoma in patients with endometrial intraepithelial neoplasia (EIN) post-hysterectomy and identify pre-hysterectomy risk factors predictive of occult carcinoma. Methods This retrospective study included patients diagnosed with...

Full description

Saved in:
Bibliographic Details
Main Authors: Waraphon Thongsang, Sompop Kuljarusnont, Suchanan Hanamornroongruang, Irene Ruengkhachorn
Format: Article
Language:English
Published: BMC 2025-01-01
Series:World Journal of Surgical Oncology
Subjects:
Online Access:https://doi.org/10.1186/s12957-025-03677-6
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832585637916573696
author Waraphon Thongsang
Sompop Kuljarusnont
Suchanan Hanamornroongruang
Irene Ruengkhachorn
author_facet Waraphon Thongsang
Sompop Kuljarusnont
Suchanan Hanamornroongruang
Irene Ruengkhachorn
author_sort Waraphon Thongsang
collection DOAJ
description Abstract Objectives To determine the prevalence of occult endometrial carcinoma in patients with endometrial intraepithelial neoplasia (EIN) post-hysterectomy and identify pre-hysterectomy risk factors predictive of occult carcinoma. Methods This retrospective study included patients diagnosed with EIN between 2007 and 2021 who underwent hysterectomy as primary treatment. An expert gynecologic pathologist reviewed pathological slides. Data collected from medical records included demographic and gynecologic information, sonographic findings, and surgical and pathological outcomes. The prevalence of occult endometrial carcinoma was calculated. Descriptive statistics evaluated carcinoma incidence, and logistic regression analysis identified independent risk factors. Results A total of 113 patients were evaluated. The median time to hysterectomy was 9.1 weeks (range 5.8–12.8 weeks). Post-hysterectomy, 36 patients (31.8%) were diagnosed with endometrial carcinoma, all endometrioid type. Of these, 88.9% were stage I per the International Federation of Gynecology and Obstetrics classification system, and 11.1% were at high risk for nodal metastasis. Predictive factors for occult carcinoma included the intraoperative gross lesion size (2 cm or larger and less than 2 cm) and endometrial aspiration. Adjusted odds ratios were 6.723 (95% CI 2.338 to 19.333) for lesions 2 cm or larger, 3.381 (95% CI 1.128 to 10.132) for lesions less than 2 cm, and 2.752 (95% CI 1.092 to 6.936) for endometrial aspiration. Conclusions Occult endometrial carcinoma was identified in 31.8% of patients with a pre-hysterectomy EIN diagnosis. The significant predictors were endometrial aspiration and the presence of a gross lesion during surgery.
format Article
id doaj-art-5e002dcb0ad04202bf0885f8fe2aedea
institution Kabale University
issn 1477-7819
language English
publishDate 2025-01-01
publisher BMC
record_format Article
series World Journal of Surgical Oncology
spelling doaj-art-5e002dcb0ad04202bf0885f8fe2aedea2025-01-26T12:36:36ZengBMCWorld Journal of Surgical Oncology1477-78192025-01-012311710.1186/s12957-025-03677-6Prevalence of occult endometrial carcinoma in patients with endometrial intraepithelial neoplasia who underwent hysterectomyWaraphon Thongsang0Sompop Kuljarusnont1Suchanan Hanamornroongruang2Irene Ruengkhachorn3Department of Obstetrics and Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol UniversityDepartment of Obstetrics and Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol UniversityDepartment of Pathology, Faculty of Medicine Siriraj Hospital, Mahidol UniversityDepartment of Obstetrics and Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol UniversityAbstract Objectives To determine the prevalence of occult endometrial carcinoma in patients with endometrial intraepithelial neoplasia (EIN) post-hysterectomy and identify pre-hysterectomy risk factors predictive of occult carcinoma. Methods This retrospective study included patients diagnosed with EIN between 2007 and 2021 who underwent hysterectomy as primary treatment. An expert gynecologic pathologist reviewed pathological slides. Data collected from medical records included demographic and gynecologic information, sonographic findings, and surgical and pathological outcomes. The prevalence of occult endometrial carcinoma was calculated. Descriptive statistics evaluated carcinoma incidence, and logistic regression analysis identified independent risk factors. Results A total of 113 patients were evaluated. The median time to hysterectomy was 9.1 weeks (range 5.8–12.8 weeks). Post-hysterectomy, 36 patients (31.8%) were diagnosed with endometrial carcinoma, all endometrioid type. Of these, 88.9% were stage I per the International Federation of Gynecology and Obstetrics classification system, and 11.1% were at high risk for nodal metastasis. Predictive factors for occult carcinoma included the intraoperative gross lesion size (2 cm or larger and less than 2 cm) and endometrial aspiration. Adjusted odds ratios were 6.723 (95% CI 2.338 to 19.333) for lesions 2 cm or larger, 3.381 (95% CI 1.128 to 10.132) for lesions less than 2 cm, and 2.752 (95% CI 1.092 to 6.936) for endometrial aspiration. Conclusions Occult endometrial carcinoma was identified in 31.8% of patients with a pre-hysterectomy EIN diagnosis. The significant predictors were endometrial aspiration and the presence of a gross lesion during surgery.https://doi.org/10.1186/s12957-025-03677-6CancerEINEndometrial intraepithelial neoplasiaEndometriumOccult endometrial carcinoma
spellingShingle Waraphon Thongsang
Sompop Kuljarusnont
Suchanan Hanamornroongruang
Irene Ruengkhachorn
Prevalence of occult endometrial carcinoma in patients with endometrial intraepithelial neoplasia who underwent hysterectomy
World Journal of Surgical Oncology
Cancer
EIN
Endometrial intraepithelial neoplasia
Endometrium
Occult endometrial carcinoma
title Prevalence of occult endometrial carcinoma in patients with endometrial intraepithelial neoplasia who underwent hysterectomy
title_full Prevalence of occult endometrial carcinoma in patients with endometrial intraepithelial neoplasia who underwent hysterectomy
title_fullStr Prevalence of occult endometrial carcinoma in patients with endometrial intraepithelial neoplasia who underwent hysterectomy
title_full_unstemmed Prevalence of occult endometrial carcinoma in patients with endometrial intraepithelial neoplasia who underwent hysterectomy
title_short Prevalence of occult endometrial carcinoma in patients with endometrial intraepithelial neoplasia who underwent hysterectomy
title_sort prevalence of occult endometrial carcinoma in patients with endometrial intraepithelial neoplasia who underwent hysterectomy
topic Cancer
EIN
Endometrial intraepithelial neoplasia
Endometrium
Occult endometrial carcinoma
url https://doi.org/10.1186/s12957-025-03677-6
work_keys_str_mv AT waraphonthongsang prevalenceofoccultendometrialcarcinomainpatientswithendometrialintraepithelialneoplasiawhounderwenthysterectomy
AT sompopkuljarusnont prevalenceofoccultendometrialcarcinomainpatientswithendometrialintraepithelialneoplasiawhounderwenthysterectomy
AT suchananhanamornroongruang prevalenceofoccultendometrialcarcinomainpatientswithendometrialintraepithelialneoplasiawhounderwenthysterectomy
AT ireneruengkhachorn prevalenceofoccultendometrialcarcinomainpatientswithendometrialintraepithelialneoplasiawhounderwenthysterectomy