Table 2.

Endoscopic findings and histopathological results of indeterminate strictures

Diagnostic impression (cholangioscopy)
Benign	9 (69.3)
Malignant	4 (30.8)
Endoscopic appearance (cholangioscopy)
Fibrous appearance	3 (23.1)
Polypoid/tumoral lesion	4 (30.8)
Inflammatory changes	4 (30.8)
Normal	2 (15.4)
Histological findings
Inconclusive	5 (45.5)
Benign	5 (45.5)
Malignant	1 (9)

Data are presented as n (%). Diagnostic accuracy (biopsies): 55%. Diagnostic accuracy (operator visual impression): 85%.