This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urinary tract, Subject name: Pathology
Periglomerular fibrosis is considered typical of 
Select and explain. 
A. Chronic pyelonephritis, B. Chronic glomerulonephritis, C. Aerionephrosclerosis, D. Malignant hypeension
C: Aerionephrosclerosis
Answer: C: Aerionephrosclerosis 
Explanation: Chronic pyelonephritis is defined here as a morphologic entity in which predominantly interstitial inflammation and scarring of the renal parenchyma are associated with grossly visible scarring and deformity of the pelvicalyceal system. Chronic pyelonephritis is an impoant cause of chronic renal failure. It can be divided into two forms: chronic obstructive pyelonephritis and chronic reflux-associated pyelonephritis Refer robbins 9/e p545