text: The thymic epithelial tumor staging system was initially proposed by Bergh and his colleagues in 1978, modified by Wilkins and Castleman in 1979, and further developed by Masaoka et al. in 1981.
  Modified Masaoka staging grouped with TNM classification is the most widely adopted system for thymic epithelial tumors currently in use.
option_0: Thymoma staging
option_1: Thymic carcinoma staging
option_2: Lung mass staging
option_3: Thymoma classification
option_4: Thymoma laboratory tests
option_5: Lung cancer staging
option_6: Thymoma physical examination
option_7: Anaplastic thyroid cancer staging