Contrast-enhanced ultrasonography in the characterization of pancreatic mucinous cystadenoma

Mucinous cystadenoma (MCA) is a rare pancreatic primitive tumor that occurs predominantly among middle-aged women. It often arises from the pancreatic body tail as a large unilocular or multilocular cyst. Mucinous cystadenoma is thought to be a premalignant lesion.(1,2) Imaging characterization is fundamental for correct treatment of cystic pancreatic lesions. Contrast-enhanced ultrasonography (CEUS) with second-generation contrast media can improve the characterization of MCA thanks to the dynamic observation of the contrast-enhanced phases. We describe a case of CEUS diagnosis of unilocular MCA of the pancreatic tail.