{"paper_id":"570d7e9a-093b-43cb-be95-995d05e90e68","body_text":"症例\n大腸内視鏡検査で生検診断し得たS状結腸子宮内膜症の1例\n2017 年 91 巻 1 号 p. 174-175\n詳細\n抄録\nA 40-year-old woman was referred to our department because of constipation and hematochezia about 3 days before menstruation. Colonoscopy revealed a slightly elevated lesion in the sigmoid colon. Histopathological examination revealed non-specific colitis. Three months later, a second colonoscopy during menstruation revealed an elevated lesion with an irregular surface and erythematous mucosa. Histopathological examination revealed ectopic glands in the muscle layer.\nEstrogen and progesterone-receptors, and CD10 stained positively on immunostaining. Therefore, we made a diagnosis of endometriosis of the sigmoid colon. Gonadotropin-releasing hormone agonist treatment was performed once a month for 6 months. Endoscopy revealed reduction of the elevated lesion with irregular surface and erythematous mucosa. Histopathological examination showed no evidence of endometriosis. The patient is still being followed-up regularly.\n© 2017 一般社団法人 日本消化器内視鏡学会 関東支部","source_license":"CC0","license_restricted":false}