percutaneous transhepaticcholangiography

per·cu·ta·ne·ous trans·he·pa·ticchol·an·gi·og·ra·phy

(PTHC) (pĕr'kyū-tā'nē-ŭs trans'hĕ-pat'ik kō-lan'jē-og'ră-fē) Contrast radiographic examination of the biliary system performed by injection through a percutaneously placed needle inserted into an intrahepatic bile duct.