Original Articles
EUS-FNA is superior to ERCP tissue sampling for suspected malignant biliary lesions without pancreatic cancer
2017 Volume 31 Issue 2 Pages 196-204
Details
2017 Volume 31 Issue 2 Pages 196-204
Background: Endoscopic transpapillary cytology and biopsy are currently performed in cases with malignant biliary lesions (MBLs). However, their diagnostic accuracies are unsatisfactory. We aimed to evaluate the diagnostic ability of EUS-FNA in cases with suspected MBLs.
Methods: The present study included 26 cases with suspected MBLs and without pancreatic cancer. There were 15 cases with MBLs, and 11 cases with lymphadenopathy around the common bile duct. EUS-FNA was performed in all cases. Of these 15 cases with MBLs, ERCP was performed in 12 cases prior to EUS-FNA. We compared EUS-FNA and ERCP tissue sampling for diagnosis.
Results: ERCP tissue sampling in 12 cases showed the sensitivity, the specificity, and the accuracy; 22%, 100%, and 30%, respectively. EUS-FNA in the same 12 cases improved those three factors; 93%, 100%, and 93%, respectively. No post-procedural complication was seen in any cases.
Conclusions: EUS-FNA is a safe and accurate diagnostic method for cases with suspected MBL, and may represent an additional option in cases with negative results diagnosed by ERCP tissue sampling.
