One-step palliative treatment method for obstructive jaundice caused by unresectable malignancies by percutaneous transhepatic insertion of an expandable metallic stent

Figure 1 Insertion procedure of EMS (A) and the overall length of stenosis (B). Appropriate intrahepatic bile duct of the lateral segment of the liver was punctured with a sheath needle under ultrasonographic guidance. Percutaneous transhepatic cholangiography was performed. The bile duct obstruction was cleared using a guide wire. After a catheter with an inner metallic guide was advanced into the duodenum, contrast material was injected to determine the overall length of stenosis.