Duct of Luschka Diagnosed by Sonography in a Patient with Bile Duct Carcinoma and Intrahepatic Bile Duct Dilatation

作者：Watanabe Manabu^*; Shiozawa Kazue; Kishimoto Yui; Mimura Takahiko; Ito Ken; Kamata Itaru; Kanayama Masahiro; Kikuchi Yoshinori; Igarashi Yoshinori; Sumino Yasukiyo

来源：Journal of Clinical Ultrasound, 2013, 41(9): 558-562.

DOI：10.1002/jcu.21998

• Bile duct of Luschka
• ultrasonography
• cholangiocarcinoma
• abdomen
• biliary tree

The bile duct of Luschka (BDL) is an anatomic anomaly that is an important cause of bile leakage after bile duct surgery. We report a case of bile duct carcinoma with dilated BDL that was diagnosed by ultrasonography (US). An 83-year-old man presented with an obstructive jaundice. US on admission revealed the presence of a solid hypoechoic mass in the bile duct at the hepatic duct confluence and a branch of the bile duct, about 2-4 mm in diameter, distinct from the dilated right anterior hepatic duct slightly upstream of the tumor. This branch had a spiral structure, extended along the gallbladder bed on the surface of segment 5 (S5) of the liver, and emanated small branches that entered the hepatic parenchyma. There has been no previous report of delineation of BDL by preoperative US.

• 出版日期2013-11