Spy Glass is used for direct inspection of bile duct and pancreatic duct even better than CT/MRI and helps us to confirm malignancy by taking biopsy and treat very large stones above 3 cms in the bile duct with the help of laser. In addition, it allows for excellent imaging protocols and useful in tissue cquisition and for arriving at an accurate treatment plan in bile duct cancers. This helps avoid major open surgery and prolonged hospital stay & high cost of treatment.