Value of Diffusion-Weighted MR Imaging for the Detection of Nephritis

Figure 4

In a thirty-two-year-old female patient DWI-MRI was able to depict a small focal nephritis in the left kidney (arrow), which was surrounded by a patchy area of altered signal in DWI-b800 and DWI-ADC (asterisk in DWI-ADC). By using only T2w and T1w imaging the focal area of nephritis could easily be misinterpreted as, for example, a simple cyst.