Fig. 14
Right pyelonephritis in a 23-year-old female with a 1-day history of right-sided abdominal pain, fever, and elevated inflammatory markers. a Axial post contrast nephrographic phase CT image with a narrow window shows reduced attenuation (arrow) at the lower pole of the right kidney with perinephric inflammatory fat stranding (dashed arrow). b Coronal post contrast nephrographic phase CT image with a narrow window shows a striated nephrogram at the lower pole of the right kidney (arrow)