1. Chronic pyelonephritis can in addition cause fever of unknown origin. 2. Treatment of xanthogranulomatous pyelonephritis involves antibiotics as well as surgery. 3. It can occur as a complication of hydronephrosis or pyelonephritis . 4. In other words, pyelitis together with nephritis is collectively known as pyelonephritis . 5. It is now the most reliable test for the diagnosis of acute pyelonephritis . 6. In December 1942, he contracted pyelonephritis and was sent back to Maastricht. 7. Hydronephrosis as well as pyelonephritis have also been reported in a few individuals. 8. Proteus and Escherichia coli are the most commonly involved bacteria in xanthogranulomatous pyelonephritis . 9. The Dr family of adhesins are particularly associated with cystitis and pregnancy-associated pyelonephritis . 10. For example, pyelonephritis -associated promoter.