Figure 1

(a) Ultrasound image of a 67-year-old male patient with ampullary carcinoma who underwent PTBD, and the diameter of hepatic segment bile duct was 5mm. (b) Shows a guide wire being inserted into the hepatic S3 bile duct. (c) Shows an 8F drainage tube being inserted along the guide wire. (d) Shows the brown turbid bile fluid being drawn out.