Thymic carcinoma staging
Masaoka TNM Staging (1999)
Original Masaoka Staging (1991)
- Stage I - Macroscopically and microscopically completely encapsulated
- Stage II - Macroscopic invasion into surrounding fatty tissues or mediastinal pleura or microscopic invasion into the capsule
- Stage III - Macroscopic invasion into adjacent organs or intrathoracic metastases
- Stage IVA - Pleural or pericardial implants/dissemination
- Stage IVB - Nodal or hematogenous metastases
GETT Staging
- Stage IA - Encapsulated, completely resected.
- Stage IB - Macroscopically completely resected but suspicion of mediastinal adhesions or potential capsular invasion at surgery.
- Stage II - Invasive tumor, completely resected.
- Stage IIIA - Invasive tumor, subtotal resection.
- Stage IIIB - Invasive tumor, biopsy alone.
- Stage IVa - Supraclav or pleural met.
- Stage IVb - Distant metastases.[1]