Primary tumor (T)
|
TX |
Primary tumor cannot be assessed
|
T0 |
No evidence of primary tumor
|
T1 |
Solitary tumor without vascular invasion
|
T2 |
Solitary tumor with vascular invasion or multiple tumors none more than 5 cm
|
T3a |
Multiple tumors more than 5 cm
|
T3b |
Single tumor or multiple tumors of any size involving a major branch of the portal vein or hepatic vein
|
T4 |
Tumor(s) with direct invasion of adjacent organs other than the gallbladder or with perforation of visceral peritoneum
|
Regional lymph nodes (N)
|
NX |
Regional lymph nodes cannot be assessed
|
N0 |
No regional lymph node metastasis
|
N1 |
Regional lymph node metastasis
|
Distant metastasis (M)
|
M0 |
No distant metastasis
|
M1 |
Distant metastasis
|
Fibrosis score (F)*
|
F0 |
Fibrosis score 0-4 (none to moderate fibrosis)
|
F1 |
Fibrosis score 5-6 (severe fibrosis or cirrhosis)
|
Anatomic stage/prognostic groups
|
Stage I |
T1 |
N0 |
M0 |
Stage II |
T2 |
N0 |
M0 |
Stage IIIA |
T3a |
N0 |
M0 |
Stage IIIB |
T3b |
N0 |
M0 |
Stage IIIC |
T4 |
N0 |
M0 |
Stage IVA |
Any T |
N1 |
M0 |
Stage IVB |
Any T |
Any N |
M1 |