Medullary angiitis and pauci-immune crescentic glomerulonephritis.


Although almost all pathological diagnoses made from a native kidney biopsy come from careful examination of the renal cortex, certain diseases have a characteristic medullary component. Medullary angiitis has histological features of interstitial hemorrhage in the medulla with an associated polymorphonuclear leukocyte infiltrate. These findings are… (More)