Because of the proximity of the pancreas to the EUS transducer, high-frequency ultrasonography (7.5-12 MHz) can be used to produce very high-resolution (submillimeter) images. Where expert EUS is available, it has proven to be the most sensitive and specific diagnostic test for pancreatic cancer. A negative endoscopic ultrasonogram is nearly 100% specific at ruling out the presence of a pancreatic neoplasm.
For more on imaging studies of pancreatic cancer, read here.
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Cite this: Fast Five Quiz: Do You Know the Risk Factors, Diagnostic Tests, and Treatment for Pancreatic Cancer? - Medscape - Oct 14, 2014.