Insights into Imaging

Table 1 Results of PTCB and final diagnosis

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

PTCB	Final diagnosis		Total
PTCB	Positive result	Negative result	Total
Positive result	144	0	144
Negative result	32	18	50
Total	176	18	194

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