Appendiceal and bowel endometriosis mimicking acute appendicitis with small bowel obstruction: case report and brief review of the literature

Alain Palomares‐Leal, Antonio Morales Cardona, Jorge Pablo Pérez Macías, D. Tueme-de la Peña, Rogelio Alejandro Sifuentes-Gallardo, Carla Paulina Campos Curz
In: International Surgery Journal · 2023 · vol. 10(11) , pp. 1804–1806 · doi:10.18203/2349-2902.isj20233342 · W4388191001
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⚙ AI-generated summary by claude@2026-06, 2026-06-13 ⓘ

This case report details a 39-year-old female whose appendiceal endometriosis mimicked acute appendicitis with small bowel obstruction, leading to appendectomy after an inconclusive CT scan.

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⚙ AI-generated deep summary by claude@2026-06, 2026-06-13 · read from full text ⓘ

This paper presents a case report of a 39-year-old woman who arrived with right iliac fossa abdominal pain, where acute appendicitis was suspected despite an inconclusive CT scan. The authors proceeded with diagnostic laparoscopy and performed a laparoscopic appendectomy, and pathology showed acute appendicitis caused by appendiceal endometriosis, with small bowel obstruction also described in the presentation. The paper includes a brief literature review but is limited by its case-report format and provides no broader comparative analysis or prospective evidence. This paper is centrally about endometriosis — specifically appendiceal and bowel endometriosis mimicking acute appendicitis with small bowel obstruction.

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Abstract

Endometriosis is defined as the presence of endometrium-like tissue outside the uterine cavity. This disease can have a variable presentation with symptoms that range from asymptomatic to non-menstrual pelvic pain, dysmenorrhea, dyspareunia, bowel symptoms, infertility, among others. We hereby present the case of a 39-year old female that presented to emergency room complaining of abdominal pain in right iliac fossa. Acute appendicitis was suspected, even though CT scan was inconclusive. Diagnostic laparoscopy was scheduled and laparoscopic appendectomy was performed and pathology examination reported acute appendicitis due to appendiceal endometriosis.
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Appendiceal and bowel endometriosis mimicking acute appendicitis with small bowel obstruction: case report and brief review of the literature DOI: https://doi.org/10.18203/2349-2902.isj20233342Keywords: Acute appendicitis, Secondary acute appendicitis, Small bowel obstruction, Endometriosis, Acute abdominal painAbstract Endometriosis is defined as the presence of endometrium-like tissue outside the uterine cavity. This disease can have a variable presentation with symptoms that range from asymptomatic to non-menstrual pelvic pain, dysmenorrhea, dyspareunia, bowel symptoms, infertility, among others. We hereby present the case of a 39-year old female that presented to emergency room complaining of abdominal pain in right iliac fossa. Acute appendicitis was suspected, even though CT scan was inconclusive. Diagnostic laparoscopy was scheduled and laparoscopic appendectomy was performed and pathology examination reported acute appendicitis due to appendiceal endometriosis. Metrics References Zondervan KT, Becker CM, Missmer SA. Endometriosis. N Eng J Med. 2020;382(13):1244-56. Kim JH, Han E. Endometriosis and Female Pelvic Pain. Seminars Reproduct Med. 2018;36(2):143-51. Falcone T, Flyckt R. Clinical Management of Endometriosis. Obstetr Gynecol. 2018;131(3):557-71. Abrão MS, Dias JA, Jr Rodini GP, Podgaec S, Bassi MA, Averbach M. Endometriosis at several sites, cyclic bowel symptoms, and the likelihood of the appendix being affected. Fertil Steril. 2010;94(3):1099-1101. Koninckx PR, Ussia A, Adamyan L, Wattiez A, Gomel V, Martin DC. Pathogenesis of endometriosis: the genetic/epigenetic theory. Fertil Steril. 2019;111(2):327-40. Mabrouk M, Raimondo D, Mastronardi M, Raimondo I, Del Forno S, Arena A et al. Endometriosis of the Appendix: When to Predict and How to Manage-A Multivariate Analysis of 1935 Endometriosis Cases. J Minimally Invasive Gynecol. 2020;27(1):100-106. Yeung P Jr. The laparoscopic management of endometriosis in patients with pelvic pain. Obstetr Gynecol Clin N Am. 2014;41(3):371-83. NICE. Endometriosis: symptoms, diagnosis and management. Pharm J. 2019. Available at: https://pharmjdev.wpengine.com/article/ld/endometriosis-symptoms-diagnosis-and management. Accessed on 25 January, 2023.

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Condition tags

endometriosisbowel_endometriosisdysmenorrheadyspareuniainfertility

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