percutaneous transhepatic cholangiography /ˌpɝːkjuːˈteɪniəs ˌtrænzhɪˈpætɪk ˌkoʊlændʒiˈɑːɡrəfi/ noun1 •An invasive imaging procedure in which a needle is inserted through the skin and liver into a bile duct, contrast dye is injected, and X-ray images are taken to visualize the biliary tree and identify or treat bile duct obstruction.
