What is the role of ultrasonography in the diagnosis of cholangiocarcinoma (CCC)?

Updated: Dec 28, 2019
  • Author: Peter E Darwin, MD; Chief Editor: N Joseph Espat, MD, MS, FACS  more...
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Ultrasound may demonstrate biliary duct dilatation and larger hilar lesions. Small lesions and distal cholangiocarcinomas are difficult to visualize. Patients with underlying primary sclerosing cholangitis (PSC) may have limited ductal dilatation secondary to ductal fibrosis. Doppler ultrasound may show vascular encasement or thrombosis.

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