Digital single-operator video cholangioscopy improves endoscopic management in patients with primary sclerosing cholangitis-a retrospective observational study

Table 3 Evaluation of dominant biliary strictures in patients with primary sclerosing cholangitis using digital single-operator video cholangioscopy (n = 22)

Variable	Dominant strictures (n = 22)
Entity of dominant stricture, n (%)
Benign	18 (81.8)
Malignant	4 (18.2)
Localization of dominant stricture, n (%)
Intrahepatic	13 (59.1)
Extrahepatic	3 (13.6)
Intra- and extrahepatic crossing	6 (27.3)
Visual evaluation of stricture by endoscopists, n (%)
Suspicious for malignancy	4 (18.2)
Suspicious for benignancy	18 (81.8)
SOVC-guided forceps biopsies, n (%)
Carcinoma/high-grade dysplasia	2 (9.1)
Benign findings	10 (45.5)
Inadequate material	1 (4.5)

SOVC: Single-operator video cholangioscopy.