Abdominal applications of diffusion-weighted magnetic resonance imaging: Where do we stand

Figure 8 Liver abscess in a patient with Crohn disease. A: Axial post contrast T1-weighted gradient recalled-echo; B: Diffusion-weighted image image. Rim enhancing lesion is seen in the right hepatic lobe, with corresponding bright lesion on diffusion weighted image. The apparent diffusion coefficient map (not shown) showed corresponding hypointense lesion suggesting true impeded diffusion. This should not be confused with liver tumors which may also show impeded diffusion. Appropriate clinical settings should suggest the diagnosis. The lesion resolved with antibiotics on follow-up.