The Diagnostic Value of Brush Cytology Alone and in Combination with Tumor Markers in Pancreaticobiliary Strictures

Table 3

The diagnostic success of brush cytology according to stricture location.

Duct^*	Sensitivity %	Specificity %	PPV %	NPV %	Accuracy %
Intrahepatic	75	100	100	92.9	94.1
Perihilar	69.4	93.1	94.4	64.3	78.2
Common bile duct	57.1	98.8	98	69.2	77.7
Pancreas	%75	100	100	88.9	91.6

NPV: negative predictive value; PPV: positive predictive value.
No statistically significant difference was found between bile duct and pancreatic duct () or between specific ducts ().