A case of intestinal endometriosis diagnosed by colonoscopic biopsy

Hironobu Nagumo, Satoshi Adachi, Yuko Egawa, Kotaro Ichihara, Kuninaga Saito, Masahiro Tada, Hiromasa Kazama
In: Progress of Digestive Endoscopy · 2014 · vol. 84(1) , pp. 174–175 · doi:10.11641/pde.84.1_174 · W2312647287
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Colonoscopic biopsy diagnosed intestinal endometriosis in a 45-year-old woman presenting with diarrhea and abdominal pain, revealing estrogen-receptor positive lesions resembling uterine stroma and glands.

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This case report describes a 45-year-old woman presenting with bloody diarrhea and lower abdominal pain who was evaluated using colonoscopy. The procedure identified elevated, submucosal-like lesions in the sigmoid colon and rectum characterized by edematous mucosa and central red nodules with white spots. Histopathological examination of biopsy specimens revealed uterine stroma and glands within the submucosal layer, while immunostaining confirmed estrogen receptor positivity, leading to a definitive diagnosis. This paper is centrally about endometriosis — specifically the diagnosis of intestinal endometriosis via colonoscopic biopsy.

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Abstract

A 45-year-old woman presented with a 2-month history of diarrhea and lower abdominal pain.The patient began to suffer from bloody diarrhea, and was referred to hospital. Colonoscopy revealed elevated lesions like a submucosal tumor at two locations in the sigmoid colon and rectum. The overlying mucosa was edematous and showed small red nodules at the center of the lesion with white spots and a scar. Intestinal endometriosis was suspected, and biopsy specimens were obtained from the nodules. On histopathological examination, the submucosal layer through the lamina propria showed a structure similar to the uterine stroma and glands. Immunostaining revealed that the lesion was estrogen-receptor positive, therefore, the lesions were diagnosed as intestinal endometriosis.
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症例 大腸内視鏡による生検で診断し得た腸管子宮内膜症の1例 2014 年 84 巻 1 号 p. 174-175 詳細 抄録 A 45-year-old woman presented with a 2-month history of diarrhea and lower abdominal pain.The patient began to suffer from bloody diarrhea, and was referred to hospital. Colonoscopy revealed elevated lesions like a submucosal tumor at two locations in the sigmoid colon and rectum. The overlying mucosa was edematous and showed small red nodules at the center of the lesion with white spots and a scar. Intestinal endometriosis was suspected, and biopsy specimens were obtained from the nodules. On histopathological examination, the submucosal layer through the lamina propria showed a structure similar to the uterine stroma and glands. Immunostaining revealed that the lesion was estrogen-receptor positive, therefore, the lesions were diagnosed as intestinal endometriosis. Colonoscopy revealed elevated lesions like a submucosal tumor at two locations in the sigmoid colon and rectum. The overlying mucosa was edematous and showed small red nodules at the center of the lesion with white spots and a scar. Intestinal endometriosis was suspected, and biopsy specimens were obtained from the nodules. On histopathological examination, the submucosal layer through the lamina propria showed a structure similar to the uterine stroma and glands. Immunostaining revealed that the lesion was estrogen-receptor positive, therefore, the lesions were diagnosed as intestinal endometriosis. © 2014 一般社団法人 日本消化器内視鏡学会 関東支部

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endometriosis

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