|
0
|
Tis
|
Lesion is only in the epithelium and has not grown into deeper layers of the gall bladder (Tis)
|
| |
N0
| |
| |
M0
|
It has not spread to nearby lymph nodes (N0) or to distant sites (M0)
|
|
I
|
T1
|
The tumor has grown into the lamina propria or the muscle layer (muscularis) (T1)
|
| |
N0
| |
| |
M0
|
It has not spread to nearby lymph nodes (N0) or to distant sites (M0).
|
|
IIA
|
T2a
|
Lesion extends through the muscle layer into the fibrous tissue on the side of the peritoneum (T2a).
|
| |
N0
| |
| |
M0
|
It has not spread to nearby lymph nodes (N0) or to distant sites (M0).
|
|
IIB
|
T2b
|
The lesion extends through the muscle layer into the fibrous tissue on the side of the liver, no invasion of the liver (T2b).
|
| |
N0
| |
| |
M0
|
It has not spread to nearby lymph nodes (N0) or to distant sites (M0).
|
|
IIIA
|
T1–3
|
The lesion has grown through the serosa and/or it has grown directly into the liver and/or one nearby structure like the stomach, duodenum, colon, pancreas (T3).
|
| |
N0
| |
| |
M0
|
It has not spread to nearby lymph nodes (N0) or to distant sites (M0).
|
|
IVA
|
T4
|
The tumor has grown into portal vein or hepatic artery or it has grown into 2 or more structures outside of the liver (T4). It may or may not have spread to no more than 3 nearby lymph nodes (N0 or N1).
|
| |
N0 or N1
| |
| |
M0
|
No distant spread.
|
|
IVB
|
Any T
|
The primary tumor may or may not have infiltrated out of the gall bladder. Spread to 4 or more regional lymph nodes (N2).
|
| |
N2
| |
| |
M0
| |
| | |
OR
|
| |
Any T
|
It has spread to distant sites such as the liver, peritoneum, or the lungs (M1).
|
| |
Any N
| |
| |
M1
| |
