DWI and Abscess

Pathologically proved cerebral abscess. Left: A complex signal intensity pattern is visible in the right occipital and temporal lobes on the fast spin-echo T2-weighted MR image (4,000/104)Middle: Ring-enhancing lesion (arrows) in the right occipital lobe is demonstrated on the gadolinium-enhanced T1-weighted MR image (650/16). Right: DW MR image ( 6,000/108) demonstrates the characteristic restricted diffusion of pyogenic abscess (arrows). Note the hyperintensity (arrowhead) in the left occipital horn due to a loculated collection of pus in this location.