Figure 3b: (a) MPR image and (b–d) 3D volume-rendered images of an ankle and foot that have been immobilized in a cast. In a, an increase in attenuation is diffusely seen in the subcutaneous fat tissues around the peroneal tendons (long arrow), with the cast materials around the ankle. The cast materials seen in b have been removed by using a software function, and the image was rotated in c to view the ankle from the lateral aspect. In d, the window width and window level settings were adjusted to better visualize the peroneal tendons (arrow).