Impact of avascular areas, as measured by contrast-enhanced harmonic EUS, on the accuracy of fine-needle aspiration for pancreatic adenocarcinoma

Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) is used for the diagnosis of pancreatic adenocarcinoma, but sometimes the method results in a false negative. Occasionally, an avascular area may be observed within the pancreatic adenocarcinoma tumor during contrast-enhanced harmonic endoscopic ultrasonography (CH-EUS). The aim of this study was to evaluate whether the diagnostic sensitivity of EUS-FNA for pancreatic adenocarcinoma was affected by the presence of avascularity on CH-EUS.

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