{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T00:29:52Z","timestamp":1747182592417,"version":"3.40.5"},"reference-count":19,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2024,3,11]],"date-time":"2024-03-11T00:00:00Z","timestamp":1710115200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Thoracic Cancer"],"published-print":{"date-parts":[[2024,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Metastasis from one neoplasm to another is referred to as tumor\u2010to\u2010tumor metastasis (TTM). TTM is rarely observed. Here, we present a patient with TTM from a thymic carcinoma to an ovarian mature teratoma. A 25\u2010year\u2010old woman, diagnosed with unresectable thymic carcinoma, presented with a cyst with a solid tumor component in her right ovary. Laparoscopic cystectomy of the right ovary revealed that the solid tumor was a distant metastasis of the thymic carcinoma in an ovarian mature teratoma. The possibility of malignant transformation of the ovarian mature teratoma was ruled out, enabling accurate staging of the thymic carcinoma. This case emphasizes the need for clinicians to consider TTM and the importance of pathological confirmation of TTM when investigating potential distant metastases.<\/jats:p>","DOI":"10.1111\/1759-7714.15277","type":"journal-article","created":{"date-parts":[[2024,3,12]],"date-time":"2024-03-12T05:58:48Z","timestamp":1710223128000},"page":"934-937","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A rare case of tumor\u2010to\u2010tumor metastasis from thymic carcinoma to an ovarian mature teratoma"],"prefix":"10.1111","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0009-0005-0001-5207","authenticated-orcid":false,"given":"Tsuyoshi","family":"Sasada","sequence":"first","affiliation":[{"name":"Department of Respiratory Medicine Kobe City Medical Center General Hospital  Kobe 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