A rare case of invasive endometriosis of sigmoid colon incidental finding in case of tubo-ovarian endometriosis

Anchal Kumari, Manish Kumar, Mohim Thakur, Chongtham A. K. Singh, Poojan Dogra, Reetika M.D. Sharma
In: International Surgery Journal · 2026 · vol. 13(3) , pp. 476–479 · doi:10.18203/2349-2902.isj20260481 · W7131078508
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⚙ AI-generated summary by claude@2026-06, 2026-06-08 ⓘ

This case report details an incidental finding of invasive sigmoid colon endometriosis presenting as bowel obstruction, emphasizing its role as a differential diagnosis in fertile-age females with gastrointestinal symptoms.

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⚙ AI-generated deep summary by claude@2026-06, 2026-06-08 · read from full text ⓘ

This case report describes a rare instance of invasive sigmoid colon endometriosis found incidentally in a patient who also had tubo-ovarian endometriosis, with the presenting clinical picture of bowel obstruction. The diagnosis of intestinal endometriosis was based primarily on histopathological examination of the resected specimen, and the authors report that surgical management together with hormonal therapy was effective. A key caveat is that, as an individual case report, the findings are not generalizable and rely on pathological confirmation for diagnostic validity. This paper is centrally about endometriosis — specifically invasive sigmoid colon (intestinal) endometriosis occurring alongside tubo-ovarian endometriosis.

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Abstract

Endometriosis is a common gynaecological disease in child bearing age group women. Ectopic endometrium most commonly involves the ovary and uterine sacral ligament but intestinal endometriosis is a rare condition. In this case report, we present a case of sigmoid endometriosis with clinical presentation of bowel obstruction. Histopathological examination of the specimen is the main basis for the diagnosis of intestinal endometriosis. Surgery and hormonal therapy were the effective method for the treatment of intestinal endometriosis. It should be considered as a differential diagnosis in the females at fertile age group presenting with gastrointestinal symptoms and intestinal mass causing bowel obstruction.
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A rare case of invasive endometriosis of sigmoid colon incidental finding in case of tubo-ovarian endometriosis DOI: https://doi.org/10.18203/2349-2902.isj20260481Keywords: Intestinal endometriosis, Sigmoid, Resection, Anastomosis, Rare, Diagnosis, TreatmentAbstract Endometriosis is a common gynaecological disease in child bearing age group women. Ectopic endometrium most commonly involves the ovary and uterine sacral ligament but intestinal endometriosis is a rare condition. In this case report, we present a case of sigmoid endometriosis with clinical presentation of bowel obstruction. Histopathological examination of the specimen is the main basis for the diagnosis of intestinal endometriosis. Surgery and hormonal therapy were the effective method for the treatment of intestinal endometriosis. It should be considered as a differential diagnosis in the females at fertile age group presenting with gastrointestinal symptoms and intestinal mass causing bowel obstruction. Metrics References Long-Zhi Z, Jian G, Wei L. Endometriosis within the sigmoid colon: A rare cause of bowel obstruction. Pak J Med Sci. 2020;36(6):1421-24. DOI: https://doi.org/10.12669/pjms.36.6.2525 Nguyen P, Kirstin PH, Janice OMD, Kevin GA. History Matters: A Rare Case of Rectosigmoid Endometriosis Disguised as Colorectal Malignancy. Am J Gastroenterol. 2024;119(10S):S1996. DOI: https://doi.org/10.14309/01.ajg.0001040984.64865.b6 Tsuei A, Nezhat F, Amirlatifi N, Najmi Z, Nezhat A, Nezhat C. Comprehensive Management of Bowel Endometriosis: Surgical Techniques, Outcomes and Best Practices. J Clin Med. 2025;14(3):977. DOI: https://doi.org/10.3390/jcm14030977 Mittelstadt S, Stäbler A, Kolb M, Krämer B, Horvat H, Reisenauer C, et al. Acute endometriosis-related sigmoid perforation in pregnancy- case report. BMC Pregnancy Childbirth. 2022;22(1):647. DOI: https://doi.org/10.1186/s12884-022-04973-9 Mușat F, Păduraru DN, Bolocan A, Constantinescu A, Ion D, Andronic O. Endometriosis as an Uncommon Cause of Intestinal Obstruction-A Comprehensive Literature Review. J Clin Med. 2023;12(19):6376. DOI: https://doi.org/10.3390/jcm12196376 Thirumurthy SK, Mohammed M. A rare case of invasive endometriosis causing intestinal obstruction. J Surg Case Rep. 2024;2024(2). DOI: https://doi.org/10.1093/jscr/rjae082 Forouhar F, Mesbah N, Esmailpour S, Bastani P, Salimi M. Endometriosis Presenting as a Rare Cause of Intestinal Perforation: A Case Report With Literature Review. Clin Case Rep. 2025;13(2). DOI: https://doi.org/10.1002/ccr3.70226 Khawaja UB, Khawaja AA, Gowani SA, Shoukat S, Ejaz S, Farzana Nawaz Ali, et al. Frequency of endometriosis among infertile women and association of clinical signs and symptoms with the laparoscopic staging of endometriosis. J Pak Med Assoc. 2009;59(1):30-4. Nezhat C, Li A, Falik R, Copeland D, Razavi G, Shakib A, et al. Bowel endometriosis: diagnosis and management. Am J Obstet Gynecol. 2018;218(6):549-62. DOI: https://doi.org/10.1016/j.ajog.2017.09.023

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