Bulletin of the Russian Military Medical AcademyBulletin of the Russian Military Medical Academy1682-73922687-1424Eco-Vector6357210.17816/brmma63572Research ArticleIntestinal endometriosis: features of clinical and morphological diagnosticsPechenikovaVictoria A.<p>PhD, MD professor</p>p-vikka@mail.ruDanilovaAnastasia S.<p>Resident</p>nastenka.danilova.96@mail.ruKvarkuVictoria E.<p>Doctor of ultrasound diagnostics</p>viktoriya.kvarku@szgmu.ruRamzaevaNadezhda N.<p>Оbstetrician-gynecologist</p>dr.ramzaeva@mail.ruNorthwest State Medical University named after I.I. Mechnikov1205202123141501703202117032021Copyright © 2021, Pechenikova V.A., Danilova A.S., Kvarku V.E., Ramzaeva N.N.2021<p>A clinical observation of the combined endometriotic lesion of the small intestine and the appendix is given below. Extragenital endometriosis is a rare pathology in which endometrioid heterotopies develop outside the reproductive system organs. At about 1825% of women suffering from the pelvic organs endometriosis, the intestines are involved in the pathological process. In this regard, it is believed that in most cases its lesion is secondary while the primary lesion of the intestine with endometriosis is rarely observed and occurs as a result of hematogenous introduction of endometrial elements into the intestinal wall. Of all parts of the intestine, endometriosis most often affects the rectum and sigmoid colon (7080%), then the jejunum, less often the cecum. The most rare gastrointestinal tract endometriosis localization is the appendix, the frequency of its lesion is 0.8%. It was carried out in a <a href="https://translate.academic.ru/clinicopathologic/ru/en/">clinicopathologic</a> analysis of 14 endometriosis cases in various parts of the intestine (4 cases of the small intestine lesions, 2 rectosigmoid part of the large intestine, 2 rectum, 2 sigmoid colon, 3 appendix, 1 combined lesion of the small intestine and the appendix). In most cases, the clinical diagnosis of extragenital endometriosis is difficult, and as a rule women come with complaints typical of acute surgical pathology: intestinal obstruction, appendicitis. An important role in differential diagnosis is given to the ultrasound examination of the pelvic organs and abdominal cavity, magnetic resonance imaging, endoscopic research methods, as well as the connection of clinical symptoms with the menstrual cycle.</p>clinical diagnosticsextragenital endometriosishistological examinationintestinal endometriosislarge intestinesmall intestineultrasound examinationгистологическое исследованиеклиническая диагностикатолстая кишкатонкая кишкаультразвуковое исследованиеэкстрагенитальный эндометриозэндометриоз кишечника[Adamyan LV, Zayratyants OV, Maksimova YuV, et al. Novyye patogeneticheskiye aspekty rasprostranennogo infil'trativnogo endometrioza: teorii i praktika. Problemy reproduktsii. 2010;(4):31–36. (In Russ.)][Endometrioidnaya bolezn'. Ed. by Baskakovа VP, Tsvelevа YuV, Kiri YeF. Saint Petersburg: Izdatel'stvo N-L; 2002. 460 p. (In Russ.)][Pechenikova VA, Kostyuchek DF. To the question of clinical characteristics of extragenital endometriosis with diverse organ localization. Vestnik Rossijskoj Voenno-medicinskoj akademii. 2010;3(31):61–66.(In Russ.)][Harbitz HF. Postoperative scar endometriosis. Acta Chir. Scand. 1934;74(30):400.][Cirillo F. Endometriosis of the caecum and ileo-caecal valve. A case report and review of the literature. Chir. Ital. 2008;60(4):603–606.][Bessmertnaya VS, Galil-Ogly GA, Samoylov MV. Endometrioz sigmovidnoy kishki. Arkhiv patologii. 2001;67(3):43. (In Russ.)][Berlanda N, Vercellini P, Fedele L. The outcomes of repeat surgery for recurrent symptomatic endometriosis. Curr. Opin. Obstet. Gynicol. 2010;22(4):320–325.][Fujimoto A. Successful laporoscopic treatment of ileo–cecalendmetriosis producing bowel obstruction. J. Obstet. Gynaecol. Res. 2001;27(4):221–223.][Emmanuel R, Léa M, Claude P, et al. Ileocolic intussusception due to a cecal endometriosis: case report and review of literature. Diagn. Pathol. 2012;7(1):62.]