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Richtlijn: Galweg- en Galblaascarcinoom (2.0)
N - Regional Lymph Nodes
NX Regional lymph nodes cannot be assessed
N0
N1
No regional lymph node metastasis
Regional lymph node metastasis including nodes along the cystic duct, common bile duct,
common hepatic artery, and portal vein
M - Distant Metastasis
M0 No distant metastasis
M1 Distant metastasis
pTNM Pathological Classification
The pT en pN categories correspond to the T and N categories.
Histological examination of a regional lymphadenectomy specimen will ordinarily include 15 or
pN0 more lymph nodes. If the regional lymph nodes are negative, but the number ordinarily examined
is not met, classify as pN0
pM1
pM0 and
pMX
Distant metastasis microscopically confirmed
are not valid categories.
G Histopathological Grading
GX Grade of differentiation cannot be assessed
G1
G2
G3
G4
Well differentiated
Moderately differentiated
Poorly differentiated
Undifferentiated
Stage Grouping
Stage 0 Tis N0 M0
Stage I T1 N0 M0
Stage II T2a, T2b N0 M0
Stage IIIA T3 N0 M0
Stage IIIB T1, T2, T3 N1 M0
Stage IVA T4 N0, N1 M0
Stage IVB Any T Any N M1
Summary
T1 Ductal wall
T2a Beyond ductal wall
T2b Adjacent hepatic parenchyma
T3
T4
N1
Unilateral branches of portal vein or hepatic artery
Main portal vein; bilateral branches; common hepatic artery; second-order biliary radicals bilaterally;
unilateral second-order biliary radicals with contralateral portal vein or hepatic artery involvement
Nodes along cystic duct, common bile duct, common hepatic artery, portal vein
Classificatie van Bismuth Corlette
07/17/13 Galweg- en Galblaascarcinoom (2.0) 40