Contrast harmonic EUS for the prediction of pancreatic neuroendocrine tumor aggressiveness (with videos)

Background and Aims Contrast harmonic EUS (CH-EUS) has the ability to depict tumor microvasculature. Decreased microvascular density has been identified as a factor associated with tumor aggressiveness. We aimed to study the accuracy of CH-EUS for the prediction of pancreatic neuroendocrine tumor (PNET) aggressiveness. Methods Between June 2009 and March 2015, all consecutive patients with histology-proven PNETs and CH-EUS examination were...