Figure 4.
Images of a 62-year-old male with a mass lesion in the pancreatic head. The mass was detected by screening ultrasonography during an annual medical check-up. (A, B) A hypointense lesion (white arrows) was detected in the pancreatic head on a fat-suppressed T 1 weighted image and T 2 weighted image. (C, D) A DWI and ADC-map show that the mass (white arrows) exhibited a lower ADC value than the normal pancreatic tissue. The mean ADC values in the 2D and 3D analyses and the energy value were 985.82, 1177.90, and 4376.61, respectively. 2D, two-dimensional; 3D, three-dimensional; ADC apparent diffusion coefficient; DWI, diffusion-weighted imaging.