Table 1. Key patient characteristics and EUS findings.

Total number of patients	97
Median age (range)	68 yr (26–93 yr)
Gender (male, female)	54 %, 46 %
Known history of PSC	13 %
Stricture appearance	44 % thickening 56 % mass
Median mass size (range)	1.3 cm (0.7–4 cm)
Location	46 % Hilar/Hepatic duct 56 % Distal/CBD
Presence of biliary stent	46 %
Presence of abnormal lymph nodes	40 %
Presence of gallstones	18 %
Needle size	22 gauge–39 % 25 gauge–61 %
Number of malignancy-confirmed cases (percentage)	80 (82.5 %)

PSC, primary sclerosing cholangitis; CBD, common bile duct