2017 Volume 31 Issue 4 Pages 671-677
EUS plays an important role in the diagnosis of biliary cancer. Especially, EUS is positioned as a modality for in-depth examination diagnosing T factor (TNM classification).
In 2013, general rules for clinical and pathological studies on cancer of the biliary tract (The 6th edition: edited by Japanese Society of Hepato-Biliary-Pancreatic Surgery) was modified and proposed as it was consistent with TNM classification (The 7th edition).
I discussed here how EUS served in the diagnosis of biliary cancers (bile duct cancer, gallbladder cancer and cancer of ampulla of Vater.) in this situation. Moreover, I had to raise the alarm over taking easy or too easy way of diagnosing biliary cancer by EUS-FNA.