opacification of the biliary tract by endoscopic retrograde catheterization of the papilla duodeni or by transparietohepatic puncture give suggestive images ( non-opacification of the cystic duct , narrowing of the hepatic duct opposite the extrinsic compression , with overlying dilatation ) , but these images are not specific .
C0005423
biliary tract
C0010672
cystic duct