Abstract

1. Abstract
A young man, entered the Emergency Department because an episode of fever in bilateral lumbar ache. The lab tests were suggestive for Acute Kidney Injury (AKI), according to K-DIGO, of unknown etiology as the negative immunological and inflammatory lab tests. As imaging patient underwent Computed tomography scan (CT scan) and Ultrasound (US) that were negative. After the discharge Magnetic Resonance (MR) was done showing multiple triangular zones of impaired diffusion compatible with nephritis not evident at the lab tests. In this case only the MR was able to detect the kidney morphological alteration related to the inflammation determining AKI.