Moura De Azevedo, SofiaBaptista, PatríciaPichel, Rita CDias, Rita RBertão, Manuela2024-06-182024-06-182023-06Moura de Azevedo S, Baptista P, Pichel RC, Dias RR, Bertão M. A Rare Case of Mediastinal Mass: Thymoma and Thymic Tumor. Cureus. 2023;15(6):e40956. doi:10.7759/cureus.409562168-8184http://hdl.handle.net/10400.16/2963Thymomas and thymic carcinomas are rare mediastinal neoplasms arising from thymic epithelial cells, and the presence of synchronous or metachronous primary thymic neoplasms in a single patient is an extremely rare event. Thymoma patients appear to have an inherent predisposition toward developing additional neoplasms. This additionally presents a diagnostic challenge, revealing the importance of multidisciplinary expertise to the management of these patients. This is a case report of a patient with a thymoma and thymic carcinoma, submitted to surgical resection and postoperative radiotherapyengmediastinal neoplasmsradiotherapythoracic surgerythymic carcinomasthymomastumor boardsjournal article10.7759/cureus.40956