What is the role of endoscopic ultrasonography (EUS) 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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Endoscopic ultrasonography (EUS) enables both bile duct visualization and nodal evaluation. This technique also permits aspiration for cytologic studies. EUS-guided fine-needle aspiration results may be positive when other diagnostic tests are inconclusive. [23] Intraductal EUS allows direct ultrasonographic evaluation of the lesion.

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