Mass-forming pancreatitis: Value of contrast-enhanced ultrasonography

Figure 1 Ductal adenocarcinoma. A: US showing slightly hypoechoic pancreatic head mass (asterisk); B: CEUS showing poor enhancement of the mass, appearing hypoechoic to the rest of pancreatic parenchyma in the contrast-enhanced phases.

Figure 2 Mass-forming chronic autoimmune pancreatitis. A: US showing hypoechoic head pancreatic mass (asterisk); B: CEUS showing parenchymographic enhancement of the pancreatic lesion in the head of the pancreas during the contrast-enhanced phases.

Figure 3 Receiver operating characteristic curves of baseline ultrasound and contrast-enhanced ultrasound in the characterization of 173 pancreatic masses, discerning between benignancy (pancreatitis) and malignancy (tumor).