Jarnagin et al reported a T-stage classification system for hilar cholangiocarcinoma. This can help to communicate the extent of the disease. The authors are from Memorial Sloan-Kettering Cancer Center.
Patient selection: cholangiocarcinoma at the biliary confluence
Parameters:
(1) extension into second-order biliary radicles
(2) portal vein involvement
(3) hepatic lobar atrophy
Second Order Biliary Radicles
Portal Vein Involvement
Hepatic Lobar Atrophy
Stage
with or without unilateral
none
none
T1
with or without unilateral
ipsilateral secondary
NA
T2
with or without unilateral
NA
ipsilateral
T2
with bilateral involvement
NA
NA
T3
NA
contralateral secondary
NA
T3
NA
main or bilateral secondary
NA
T3
NA
NA
contralateral
T3
where:
• Bilateral hepatic lobar atrophy would probably also be T3.
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