CT
There are 2 distinct types of emphysematous pyelonephritis according to Wan et al. Which is associated with a poorer prognosis?
Type 1 is associated with a poorer prognosis. The mortality rate is 69% in type 1 compared to 18% in type 2.
What is the best modality for diagnosing this condition?
CT is best (this was non-contrast due to the patient's poor renal function)
Left renal enlargement with architectural distortion. There are bubbly and linear streaks of air within renal parenchyma and perinephric space with an intrarenal fluid collection. Bilateral perinephric fat stranding and thickening of Gerota fascia noted (more in left kidney)