<unk>  is uncommon (<1% incidence) in patients without any symptoms but occurs in about 10-15% of hospitalized patients with acute kidney injury of unknown cause. While it can occur in patients of all ages, it is more common in elderly patients, perhaps due to increased exposure to drugs and other triggering causes.
Interstitial nephritis
Shunt nephritis
Lupus nephritis
Diffuse proliferative nephritis
Acute tubular necrosis
Renal papillary necrosis
Focal proliferative nephritis
Analgesic nephropathy