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Duct of Luschka diagnosed by sonography in a patient with bile duct carcinoma and intrahepatic bile duct dilatation
Author(s) -
Watanabe Manabu,
Shiozawa Kazue,
Kishimoto Yui,
Mimura Takahiko,
Ito Ken,
Kamata Itaru,
Kanayama Masahiro,
Kikuchi Yoshinori,
Igarashi Yoshinori,
Sumino Yasukiyo
Publication year - 2012
Publication title -
journal of clinical ultrasound
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.272
H-Index - 61
eISSN - 1097-0096
pISSN - 0091-2751
DOI - 10.1002/jcu.21998
Subject(s) - medicine , bile duct , intrahepatic bile ducts , gallbladder , common hepatic duct , jaundice , duct (anatomy) , radiology , cystic duct , biliary tract , common bile duct , anatomy
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. © 2012 Wiley Periodicals, Inc. J Clin Ultrasound 41 :558–562, 2013.