Percutaneous transhepatic cholangiogram Percutaneous transhepatic cholangiogram Percutaneous transhepatic cholangiography Percutaneous transhepatic cholangiogram Percutaneous transhepatic cholangiography Percutaneous transhepatic cholangiogram percutaneous transhepatic cholangiography PTHC Percutaneous transhepatic cholangiogram Percutaneous transhepatic cholangiogram Percutaneous transhepatic cholangiogram Percutaneous transhepatic cholangiography Percutaneous transhepatic cholangiogram