False-negative factors of percutaneous transluminal clamp biopsy for suspected malignant biliary stricture: 194 cases analyzed from a single center

ConclusionPTCB is an effective minimally invasive interventional technique for BS diagnosis. Non-cholangiocarcinoma BS is an independent risk factor for FNV.Critical relevance statementIdentifying factors that are predictive of false-negative results by percutaneous transluminal clamp biopsy in the setting of biliary stricture may have a guiding effect on clinical practice.Key points• Factors predictive of false negatives in the diagnosis of biliary stricture etiology by PTCB may aid in the interpretation of results.• Non-cholangiocarcinoma BS is an independent risk factor for FNV on PTCB.• PTCB is an effective minimally invasive interventional technique for BS diagnosis.Graphical Abstract
Source: Insights into Imaging - Category: Radiology Source Type: research