All are causes of granular contracted kidneys, except-

In benign nephrosclerosis, the kidneys will be reduced in size, and weight. The capsule is often adherent to the coical surface. The surface of the kidney is finely granular and shows V-shaped areas of scaring. In chronic pyelonephritis, the kidneys are small and contracted, showing an unequal reduction, which distinguishes it from other contracted kidneys. In chronic glomerulonephritis, the kidneys are small and contracted. The capsule is adherent to the coex and the coical surface is diffusely granular. on cut section, the coex is narrow and atrophic, while the medulla is unremarkable. From Textbook of pathology Harsh Mohan,6th edition pg no:687,682,674