Fig. 13
From: Imaging diagnosis and staging of pancreatic ductal adenocarcinoma: a comprehensive review
A 53-year-old man with a pancreatic neuroendocrine tumor of the head. Axial arterial phase (a) and portal venous phase (b) and (c) CT images show a well-defined mass (asterisk) with peripheral hypervascularity and central cystic area. Only mild dilatation of the MPD (arrow) due to external compression by the tumor, rather than ductal origin of the tumor. Histopathology revealed pancreatic endocrine tumor