|  | Pathological stage | |||||
---|---|---|---|---|---|---|---|
 |  | IA | IB | IIA | IIB | IIIA | IIIB |
Clinical stage | IA | 23 | 2 | 8 | 1(T1→T2 N0→N1) | 1 | 1 |
 | (T1→T2) | (N0→N1) |  | (N0→N2) | (T1→T4) | ||
IB | 1 | 6 | 1 | 1 | 3 (T2→T3,N0→N1) |  | |
(N1→N0) |  | (N0→N1) | (N0→N1) | (N0→N2) |  | ||
(T2→T3,N0→N1) | |||||||
IIA | 1 | Â | 4 | Â | Â | 1 | |
(N1→N0) |  |  |  |  | (T1→T4 N1→N2) | ||
IIB | Â | Â | Â | 3 | Â | 1 | |
(T2→T4) | |||||||
IIIA | Â | Â | Â | Â | 7 | 1 | |
(T2→T4) | |||||||
 | IIIB |  |  |  |  |  | 3 |