Appendiceal intussusception from endometriosis

Tomoko Nakamura; Shotaro Hayashi; Ken Shimizu; Ayako Muraoka; Natsuki Nakanishi; Kaoru Niimi; Satoko Osuka; Maki Goto

doi:10.5180/jsgoe.36.1_185

Appendiceal intussusception from endometriosis

Tomoko Nakamura, Shotaro Hayashi, Ken Shimizu, Ayako Muraoka, Natsuki Nakanishi, Kaoru Niimi, Satoko Osuka, Maki Goto

In: JAPANESE JOURNAL OF GYNECOLOGIC AND OBSTETRIC ENDOSCOPY · 2020 · vol. 36(1) , pp. 185–188 · doi:10.5180/jsgoe.36.1_185 · W3033213239

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⚙ AI-generated summary by claude@2026-06, 2026-06-09 ⓘ

This case report details a rare instance of appendiceal intussusception caused by endometriosis in a 42-year-old woman, highlighting the need for surgical coordination in managing such complex presentations.

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⚙ AI-generated deep summary by claude@2026-06, 2026-06-12 · read from full text ⓘ

This paper reports a rare case of appendiceal intussusception caused by endometriosis in a 42-year-old woman with rectal bleeding and left-sided abdominal pain. Colonoscopy identified a 30-mm cecal mass, and MRI showed extensive pelvic adhesions with a 20-mm left endometrioma; laparoscopy then demonstrated isolated appendiceal intussusception along with deep infiltrating pelvic endometriosis. Laparoscopic ileocecal resection and left ovarian cystectomy were performed, and histopathology confirmed ovarian endometriosis with endometriosis-induced appendiceal intussusception. This paper is centrally about endometriosis — specifically, endometriosis causing appendiceal intussusception.

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Abstract

Appendiceal intussusception secondary to endometriosis is extremely rare. We report a case of left ovarian endometriosis with endometriosis-induced appendiceal intussusception in a 42-year-old woman presenting with rectal bleeding and left-sided abdominal pain. Colonoscopy revealed a cecal mass measuring 30 mm in diameter. Magnetic resonance imaging revealed extensive pelvic adhesions and a left-sided endometrioma measuring 20 mm in diameter. Laparoscopy revealed isolated appendiceal intussusception and deep infiltrating pelvic endometriosis. Laparoscopic ileocecal resection and left ovarian cystectomy were performed. Histopathological examination confirmed the diagnosis of ovarian endometriosis with endometriosis-induced appendiceal intussusception. Although rare, endometriosis-induced appendiceal intussusception should be considered in the differential diagnosis in women with endometriosis presenting with an appendiceal mass. Coordination between gynecologists and gastrointestinal surgeons is essential for an effective surgical approach to ensure optimal management.

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症例報告虫垂子宮内膜症により完全型虫垂重積を生じた一例 2020 年 36 巻 1 号 p. 185-188 詳細抄録 Appendiceal intussusception secondary to endometriosis is extremely rare. We report a case of left ovarian endometriosis with endometriosis-induced appendiceal intussusception in a 42-year-old woman presenting with rectal bleeding and left-sided abdominal pain. Colonoscopy revealed a cecal mass measuring 30 mm in diameter. Magnetic resonance imaging revealed extensive pelvic adhesions and a left-sided endometrioma measuring 20 mm in diameter. Laparoscopy revealed isolated appendiceal intussusception and deep infiltrating pelvic endometriosis. Laparoscopic ileocecal resection and left ovarian cystectomy were performed. Histopathological examination confirmed the diagnosis of ovarian endometriosis with endometriosis-induced appendiceal intussusception. Although rare, endometriosis-induced appendiceal intussusception should be considered in the differential diagnosis in women with endometriosis presenting with an appendiceal mass. Coordination between gynecologists and gastrointestinal surgeons is essential for an effective surgical approach to ensure optimal management. © 2020 日本産科婦人科内視鏡学会

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