ERCP: Sensitivity and Specificity
ERCP has a sensitivity and specificity of 90 to 95 percent in detecting pancreatic cancer. It is most useful if the CT or US does not reveal a mass lesion or if chronic pancreatitis is in the differential diagnosis.
Tissue samples and/or brush cytology can be collected at the time of ERCP, but the sensitivity for detection of malignancy is probably lower than that of endoscopic ultrasound (EUS)-guided FNA.
90% sensitive, 90% specific