{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,19]],"date-time":"2026-06-19T22:51:10Z","timestamp":1781909470412,"version":"3.54.5"},"reference-count":0,"publisher":"S. Karger AG","issue":"3","license":[{"start":{"date-parts":[[2021,12,27]],"date-time":"2021-12-27T00:00:00Z","timestamp":1640563200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2021,12,27]],"date-time":"2021-12-27T00:00:00Z","timestamp":1640563200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Case Rep Oncol"],"abstract":"<jats:p>Immature ovarian teratomas are rare ovarian germ cell tumors associated with a variable potential of distant metastasis. The acquisition of mature phenotypes upon post-treatment recurrence of immature teratomas has been previously described. In this study, we report, for the first time, a rare case of a recurrent ovarian immature teratoma with mature deposits in the small bowel. An incidental pelvi-abdominal mass was identified in a 30-year-old pregnant patient during antenatal ultrasonography. The mass, which was resected through salpingo-oopherectomy, was histopathologically characterized as an immature teratoma of grade 2 and treated with 3 cycles of chemotherapy. After 3 years of completing treatment, the patient suffered from severe anemia which was investigated by capsule endoscopy that identified a bleeding source in the ileum. Imaging studies revealed an intrabdominal mass that was resected laparoscopically. The pathological assessment of the mass identified a submucosal\/intramuscular teratoma with mature elements indicative of a recurrent metastasis of immature teratoma associated with post-chemotherapy retroconversion. The secondary mass was then managed with adjuvant chemotherapy. <\/jats:p>","DOI":"10.1159\/000520950","type":"journal-article","created":{"date-parts":[[2021,12,27]],"date-time":"2021-12-27T22:01:27Z","timestamp":1640642487000},"page":"1834-1840","source":"Crossref","is-referenced-by-count":3,"title":["An Uncommon Recurrent Metastasis of Ovarian Immature Teratoma to the Small Bowel"],"prefix":"10.1159","volume":"14","author":[{"given":"Mohammad","family":"Al\u2010hazaimeh","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mahmoud","family":"Jaradat","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohammed","family":"El-Sadoni","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tamara","family":"Smadi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruba","family":"Shannaq","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Omar","family":"Bani Hani","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahmad","family":"Alhesa","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nisreen","family":"Abu Shahin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2878-1107","authenticated-orcid":false,"given":"Tareq","family":"Saleh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"127","published-online":{"date-parts":[[2021,12,27]]},"container-title":["Case Reports in Oncology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/520950","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/520950","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,23]],"date-time":"2025-04-23T15:34:46Z","timestamp":1745422486000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000520950"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,12,27]]},"references-count":0,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2022,1,6]]}},"URL":"https:\/\/doi.org\/10.1159\/000520950","archive":["Portico"],"relation":{},"ISSN":["1662-6575"],"issn-type":[{"value":"1662-6575","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,12,27]]}}}