Imaging pitfalls of pancreatic serous cystic neoplasm and its potential mimickers

Figure 3 A 43-year-old female with solid-appearing serous cystic neoplasm in the pancreatic head. A: The arterial phase of an axial contrast enhanced (CE) T1-weighted gradient-echo (GRE) magnetic resonance (MR) image with fat saturation shows an enhancing mass in the pancreatic head (arrow); B: The equilibrium phase of an axial CE T1-weighted GRE MR imaging shows the tumor (arrow) to be low intensity (wash-out); C: The pancreatic head mass (arrowhead) is not clearly demonstrated on MR cholangiopancreatography. The pancreatic head mass appears radiologically solid (solid-appearing). An arrow shows a concomitant small intraductal papillary mucinous neoplasm; D: Macroscopic view of the resected specimen shows the mass appears solid; E: Microscopic view shows the tumor consisting of small cystic structures with intervening fibrous stroma.