{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,7]],"date-time":"2025-11-07T00:09:05Z","timestamp":1762474145941,"version":"build-2065373602"},"reference-count":10,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2018,4,23]],"date-time":"2018-04-23T00:00:00Z","timestamp":1524441600000},"content-version":"vor","delay-in-days":112,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Case Reports in Obstetrics and Gynecology"],"published-print":{"date-parts":[[2018,1]]},"abstract":"<jats:p>We present the case of a 28\u2010year\u2010old nulliparous female with malignant transformation of an ectopic focus of endometriosis in the right ischioanal fossa. A 28\u2010year\u2010old nulliparous patient with a past medical history of polycystic ovarian syndrome (PCOS) was diagnosed with endometrioid adenocarcinoma in her right ischioanal fossa. Initially, patient presented to an emergency department and underwent a CT scan of the appendix to rule out appendicitis. A multiloculated cystic lesion adjacent to the right obturator internus muscle was found. She underwent surgical resection of the mass, which confirmed FIGO grade 2 endometrioid adenocarcinoma, followed by localized radiation therapy. Malignancy arising in endometriosis is rare, and the influence of PCOS on the rate of malignant transformation is not well established.<\/jats:p>","DOI":"10.1155\/2018\/5643040","type":"journal-article","created":{"date-parts":[[2018,4,23]],"date-time":"2018-04-23T19:32:33Z","timestamp":1524511953000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Malignant Transformation of Endometriosis in the Ischioanal Fossa"],"prefix":"10.1155","volume":"2018","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1800-0343","authenticated-orcid":false,"given":"Jordan S.","family":"Klebanoff","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shivani K.","family":"Shah","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mark G.","family":"Cadungog","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2018,4,23]]},"reference":[{"doi-asserted-by":"publisher","key":"e_1_2_6_1_2","DOI":"10.1056\/nejmcp1000274"},{"doi-asserted-by":"publisher","key":"e_1_2_6_2_2","DOI":"10.1055\/s-0036-1597122"},{"doi-asserted-by":"publisher","key":"e_1_2_6_3_2","DOI":"10.1186\/1746-1596-8-194"},{"doi-asserted-by":"publisher","key":"e_1_2_6_4_2","DOI":"10.1056\/NEJMoa1614814"},{"doi-asserted-by":"publisher","key":"e_1_2_6_5_2","DOI":"10.1093\/humupd\/dmu012"},{"doi-asserted-by":"publisher","key":"e_1_2_6_6_2","DOI":"10.1007\/s10552-010-9658-7"},{"doi-asserted-by":"publisher","key":"e_1_2_6_7_2","DOI":"10.1016\/S0002-9378(15)30434-8"},{"doi-asserted-by":"publisher","key":"e_1_2_6_8_2","DOI":"10.1159\/000449198"},{"doi-asserted-by":"publisher","key":"e_1_2_6_9_2","DOI":"10.1097\/00003081-196606000-00008"},{"doi-asserted-by":"publisher","key":"e_1_2_6_10_2","DOI":"10.1095\/biolreprod.114.126458"}],"container-title":["Case Reports in Obstetrics and Gynecology"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/criog\/2018\/5643040.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/criog\/2018\/5643040.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1155\/2018\/5643040","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,11,7]],"date-time":"2025-11-07T00:04:28Z","timestamp":1762473868000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1155\/2018\/5643040"}},"subtitle":[],"editor":[{"given":"Seung-Yup","family":"Ku","sequence":"additional","affiliation":[],"role":[{"role":"editor","vocabulary":"crossref"}]}],"short-title":[],"issued":{"date-parts":[[2018,1]]},"references-count":10,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2018,1]]}},"alternative-id":["10.1155\/2018\/5643040"],"URL":"https:\/\/doi.org\/10.1155\/2018\/5643040","archive":["Portico"],"relation":{},"ISSN":["2090-6684","2090-6692"],"issn-type":[{"type":"print","value":"2090-6684"},{"type":"electronic","value":"2090-6692"}],"subject":[],"published":{"date-parts":[[2018,1]]},"assertion":[{"value":"2018-01-07","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2018-03-19","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2018-04-23","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"5643040"}}