Atkinson CJ et al: Mild asymptomatic intrahepatic biliary dilation after cholecystectomy, a common incidental variant. Abdom Radiol (NY). 42(5):1408-14, 2017
McArthur TA et al: CT evaluation of common duct dilation after cholecystectomy and with advancing age. Abdom Imaging. 40(6):1581-6, 2015
Itoi T et al: Extrahepatic bile duct measurement by using transabdominal ultrasound in Japanese adults: multi-center prospective study. J Gastroenterol. 48(9):1045-50, 2013
McArthur TA et al: The common duct dilates after cholecystectomy and with advancing age: reality or myth? J Ultrasound Med. 32(8):1385-91, 2013
Lutz, H et al: Manual of Diagnostic Ultrasound. World Heath Organization, 2011
O'Connor OJ et al: Imaging of biliary tract disease. AJR Am J Roentgenol. 197(4):W551-8, 2011
Holm AN et al: What should be done with a dilated bile duct? Curr Gastroenterol Rep. 12(2):150-6, 2010
Horrow MM: Ultrasound of the extrahepatic bile duct: issues of size. Ultrasound Q. 26(2):67-74, 2010
Rubens DJ. Ultrasound imaging of the biliary tract. Ultrasound Clinics. 2(3):391-413, 2007
Gandolfi L et al: The role of ultrasound in biliary and pancreatic diseases. Eur J Ultrasound. 16(3):141-59, 2003
von Herbay A et al: Color doppler sonography avoids misinterpretation of the "parallel channel sign" in the sonographic diagnosis of cholestasis. J Clin Ultrasound. 27(8):426-32, 1999
Laing FC: The gallbladder and bile ducts. In Rumack CM et al: Diagnostic Ultrasound. Vol. 1. Mosby-Year Book. 75–223, 1998
Bressler EL et al: Sonographic parallel channel sign: a reappraisal. Radiology. 164(2):343-6, 1987
Related Anatomy
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Related Differential Diagnoses
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Pathology
Clinical Issues
IMAGING
General Features
Ultrasonographic Findings
CT Findings
MR Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
CLINICAL ISSUES
Presentation
Selected References
Atkinson CJ et al: Mild asymptomatic intrahepatic biliary dilation after cholecystectomy, a common incidental variant. Abdom Radiol (NY). 42(5):1408-14, 2017
McArthur TA et al: CT evaluation of common duct dilation after cholecystectomy and with advancing age. Abdom Imaging. 40(6):1581-6, 2015
Itoi T et al: Extrahepatic bile duct measurement by using transabdominal ultrasound in Japanese adults: multi-center prospective study. J Gastroenterol. 48(9):1045-50, 2013
McArthur TA et al: The common duct dilates after cholecystectomy and with advancing age: reality or myth? J Ultrasound Med. 32(8):1385-91, 2013
Lutz, H et al: Manual of Diagnostic Ultrasound. World Heath Organization, 2011
O'Connor OJ et al: Imaging of biliary tract disease. AJR Am J Roentgenol. 197(4):W551-8, 2011
Holm AN et al: What should be done with a dilated bile duct? Curr Gastroenterol Rep. 12(2):150-6, 2010
Horrow MM: Ultrasound of the extrahepatic bile duct: issues of size. Ultrasound Q. 26(2):67-74, 2010
Rubens DJ. Ultrasound imaging of the biliary tract. Ultrasound Clinics. 2(3):391-413, 2007
Gandolfi L et al: The role of ultrasound in biliary and pancreatic diseases. Eur J Ultrasound. 16(3):141-59, 2003
von Herbay A et al: Color doppler sonography avoids misinterpretation of the "parallel channel sign" in the sonographic diagnosis of cholestasis. J Clin Ultrasound. 27(8):426-32, 1999
Laing FC: The gallbladder and bile ducts. In Rumack CM et al: Diagnostic Ultrasound. Vol. 1. Mosby-Year Book. 75–223, 1998
Bressler EL et al: Sonographic parallel channel sign: a reappraisal. Radiology. 164(2):343-6, 1987
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