Abstract

Invasive thymomas are rare anterior mediastinal tumor, representing 50% of anterior mediastinal masses and about 20%–30% of all mediastinal tumors. They are of unknown etiology; about 50% of patients with thymomas are diagnosed incidentally with chest radiography. Thymoma is classified into different stages, which determine the prognosis and type of management, the standard primary treatment for these tumors is thymectomy.