Table 1.

Masaoka-Koga staging

Masaoka-Koga staging
Stage I		Grossly and microscopiolly anopsulated
Stage II	a	Microscopic transcapsular invasion
b	Macroscopic capsular invasion
Stage III		Macroscoping invasion of neighboring organs, incuding pedal rdium, lung, or the main blood vessels
Stage IV	a	Pleural or periardial dissemination
b	Hematogenous or lymphatic dssemination