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Currently, there are little data available to guide management and gauge long\u2010term prognosis. Furthermore, there have been no reports of these lesions occurring simultaneously with other intracranial neoplasms or in patients with a history of malignancy. Here we describe the first case of a very unusual patient with intracranial myxoid mesenchymal tumor of the right lateral ventricle with a concurrent fourth ventricular ependymoma who had a remote history of Ewing sarcoma of the right fibula.<\/jats:p>","DOI":"10.1111\/neup.12844","type":"journal-article","created":{"date-parts":[[2022,6,23]],"date-time":"2022-06-23T07:35:13Z","timestamp":1655969713000},"page":"534-539","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Concurrent intraventricular intracranial myxoid mesenchymal tumor and ependymoma in a long\u2010term Ewing sarcoma survivor"],"prefix":"10.1111","volume":"42","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7582-0877","authenticated-orcid":false,"given":"Adam S.","family":"Levy","sequence":"first","affiliation":[{"name":"Department of Neurosurgery University of Miami Miller School of Medicine  Miami Florida 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