...Here a heavily pretreated patient with advanced thymic carcinoma responsive to multikinases inhibitor BAY 43-9006 (Sorafenib). Of note, a hitherto unreported c-kit missense mutation on exon 17 (D820E) identified in tumor cells seems to explain the clinical response and highlight the key role of molecular analysis in predicting efficacy of targeted therapies even in thymic neoplasms.