Clinicopathological study of solid and pseudopapillary tumor of pancreas: Emphasis on magnetic resonance imaging findings

Figure 1 Completely solid pattern. A: Abdominal CT with contrast showed a well-defined homogeneous soft tissue mass at the pancreatic head; B: T1-weighted MR image with Gd-DTPA enhancement revealed a pancreatic head tumor containing homogenous low-signal-intensity with compression the confluence of splenic vein; C: T2-weighted MR image revealed a well-defined pancreatic head tumor containing slightly high-signal-intensity than pancreas parenchyma.

Figure 2 Typical pattern. A: Abdominal CT with contrast showed a well-defined heterogenous mass in the pancreatic head with part of hyperdensity; B: T1-weighted MR image demonstrates a pancreatic head mass with low-signal-intensity and heterogeneously high-signal-intensity area; C: T2-weighted MR image demonstrates a heterogenous hyperintense mass in the pancreatic head with foci hypointensities, high signal intensity means hemorrhage.

Figure 3 Massive hemorrhage pattern. A: Abdominal CT with contrast revealed a well-defined pancreatic body tumor containing heterogenous attenuation; B: T1-weighted MR image revealed a pancreatic body tumor containing revealed mainly high-signal-intensity with intermediate- and low-signal intensity area and irregular septation; C: T2-weighted MR image demonstrates a well-defined heterogenous slightly hyperintense mass with foci hypointense part. The high-signal-intensity area on T1W1 image appeared slightly hyperintense on T2 weighted MR image.