CCC: Distal BD
ampulla of Vatar to cystic duct origin
Staging Form AJCC 8th

Imaging Modality

Tumor Size

The largest tumor

cm

Tumor Invasion

Maximum depth of invasion

mm
< 5 mm (T1), 5–12 mm (T2), > 12 mm (T3)
T4
Adjacent organs

Regional Lymph Node

1-3 (N1), ≥4 (N2)

Nodes along the portal triad, pancreaticoduodenal nodes, SMV, or the right aspect of the SMA

Distant Metastasis

Others