Hi, Thanks for writing in. I suppose your grand mother has cancer of gall bladder that is causing biliary obstruction. The lever generates bile which is required for digestion of food. The bile is stored in gall bladder. Cancer in the gall bladder can cause problem in bile clearance and this leads to bile getting collected in the liver and there is jaundice. In your grandmother the biliary obstruction due to gall bladder cancer is causing problems. The doctors want to insert a stent to restore bile flow and reduce jaundice. This is done to bring relief to patient by allowing the liver enzymes to become normal. Complete surgery for gall bladder cancer is possible only in early stages. Please discuss if your grandmother has early cancer and if surgery is planned to remove toe gall bladder. Please do not worry.