Peroral Cholangioscopy in the Diagnosis and Treatment of Biliary Strictures

Objective: To determine the role of and indications for peroral cholangioscopy using SpyGlass system in differential diagnosis biliary tract lesions case strictures, based on literature data analysis our own experience. Materials methods: Peroral is mainly used lesions. During cholangioscopy, we carefully consider gross signs damage to bile duct mucosa: abnormal capillary vascular pattern, granulation tissue other types proliferation, palpatory characteristics wall. Morphology should also be verified during image-guided intraductal forceps biopsy. Results: endoscopy significantly increases effectiveness between various strictures. Direct examination mucosa with optical biopsy morphological verification sensitivity specificity stricture type determination up 83.3%–96% 90.9%–99%, respectively. The diagnostic value malignant benign exceeds endoscopic retrograde cholangiopancreatography, even fluoroscopy-guided ducts. Conclusions: its enormous potential plays an important management patients diseases bilio-pancreatoduodenal area, including We formulated key experience this technique pathology, nondifferentiated