The T Category of Distal Extrahepatic Bile Duct Carcinoma: A Comparative Analysis With Invasive Tumor Thickness

The T category of distal extrahepatic bile duct carcinoma (DBDC) is based on invasion depth from the basal lamina to the deepest infiltrating tumor cells. Recently, invasive tumor thickness (ITT) was proposed, defined as maximal vertical distance of invasive tumor components regardless of the basal lamina. We compared the predictive value of T category, and ITT grading in 424 surgically resected DBDCs. DBDCs were categorized as 6 Tis (1.4%), 134 T1 (12 mm; 18.9%). With ITT, there were 6 G0 (no invasion; 1.4%), 3 G1 (
Source: The American Journal of Surgical Pathology - Category: Pathology Tags: Original Articles Source Type: research