Table 1 Thymoma staging according to Masaoka et al. [10]
From: Epithelial thymic tumours in paediatric age: a report from the TREP project
Stage I | Totally encapsulated |
Stage II | Capsular invasion and/or invasion into surrounding fat or pleura |
Stage III | Invasion into organs (pericardium, lung, great vessels) |
Stage IV-A | Pleural or pericardial implants |
Stage IV-B | Haematogenous metastases |