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Today there are various theories regarding how endometriosis occurs. By pathological findings and lesion sites of the present case, we concluded that the endometrial tissues in the menstrual blood might metastasize lymphatically and implant and form the retroperitoneal cyst.<\/jats:p>","DOI":"10.1155\/2017\/2302568","type":"journal-article","created":{"date-parts":[[2017,12,19]],"date-time":"2017-12-19T18:31:06Z","timestamp":1513708266000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Retroperitoneal Endometriotic Cyst Infiltrated in the Iliopsoas Incidentally Found in a Patient with Acute Back Pain"],"prefix":"10.1155","volume":"2017","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7898-5880","authenticated-orcid":false,"given":"Nanami","family":"Tsukasaki","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0773-2584","authenticated-orcid":false,"given":"Takuro","family":"Yamamoto","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Akihisa","family":"Katayama","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nozomi","family":"Ogiso","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tomoharu","family":"Okubo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2017,12,19]]},"reference":[{"key":"e_1_2_6_1_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jmig.2006.07.009"},{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2559.2001.01215.x"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1136\/jcp.55.5.391"},{"key":"e_1_2_6_4_2","first-page":"254","article-title":"Immunohistochemical evaluation of epithelial antigen Ber-Ep4 and CD10: new markers for endometriosis?","volume":"34","author":"Capobianco G.","year":"2013","journal-title":"European Journal of Gynaecological Oncology"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0889-8545(02)00052-9"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1159\/000049425"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9378(40)91238-8"}],"container-title":["Case Reports in Obstetrics and Gynecology"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/criog\/2017\/2302568.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/criog\/2017\/2302568.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1155\/2017\/2302568","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,24]],"date-time":"2025-08-24T16:56:32Z","timestamp":1756054592000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1155\/2017\/2302568"}},"subtitle":[],"editor":[{"given":"Seung-Yup","family":"Ku","sequence":"additional","affiliation":[],"role":[{"role":"editor","vocabulary":"crossref"}]}],"short-title":[],"issued":{"date-parts":[[2017,1]]},"references-count":7,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2017,1]]}},"alternative-id":["10.1155\/2017\/2302568"],"URL":"https:\/\/doi.org\/10.1155\/2017\/2302568","archive":["Portico"],"relation":{},"ISSN":["2090-6684","2090-6692"],"issn-type":[{"value":"2090-6684","type":"print"},{"value":"2090-6692","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,1]]},"assertion":[{"value":"2017-08-20","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2017-11-02","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2017-12-19","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"2302568"}}