We report two patients, four and five weeks old, in whom sonographically guided percutaneous transhepatic gallbladder puncture was used to facilitate a contrast study of the complete extrahepatic ...

A percutaneous transhepatic cholangiogram (per-kew-tay-nee-us trans-hep-attic col-an-jee-o-gram) is a way of looking at your bile ducts using x-rays. This test is also called a PTC. You may have a ...