"stage I: intact thymic capsule"
"stage II: capsular invasion into adjacent mediastinal fat or pleura"
"stage III: macroscopic invasion into adjacent organs, vessels"
"IVa: dissemination in thoracic cavity (i.e. pleural or pericardial implants)"
"IVb: distant metastases"
"stage I: intact thymic capsule"
"stage II: capsular invasion into adjacent mediastinal fat or pleura"
"stage III: macroscopic invasion into adjacent organs, vessels"
"stage IV"
"IVa: dissemination in thoracic cavity (i.e. pleural or pericardial implants)"
"IVb: distant metastases"