proliferative glomerulonephritis

proliferative glomerulonephritis,

any of various types of glomerulonephritis accompanied by proliferation of endothelial or mesangial cells in the glomeruli, including acute, diffuse, membranoproliferative, mesangial proliferative, and rapidly progressive glomerulonephritis.

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glomerulonephritis

a variety of nephritis characterized by inflammation of the capillary loops in the glomeruli of the kidney with secondary tubulointerstitial and vascular changes. It occurs in acute, subacute and chronic forms and may be secondary to infection or immune mechanisms.

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immune-mediated glomerulonephritis

caused by deposition of immune complexes on the glomerular basement membrane or autoantibodies against the glomerular basement membrane.

lobular glomerulonephritis

a form in which all glomeruli are affected, with accentuation of the lobulation of the glomerular tufts; it is marked by constant proteinuria and microscopic hematuria.

membranoproliferative glomerulonephritis, mesangiocapillary glomerulonephritis

a chronic, slowly progressive glomerulonephritis in which the glomeruli are enlarged as a result of proliferation of mesangial cells and irregular thickening of the capillary walls, which narrows the capillary lumina; the onset is sudden, with hematuria, proteinuria or nephrotic syndrome and a persistent reduction in serum complement levels and deposition of activated complement components in the glomerular capillaries. Occurs in Finnish-Landrace sheep and is the most common glomerulopathy seen in dogs.

membranous glomerulonephritis

diffuse and irregular thickening of the basement membrane where there is diffuse granular deposition of immunoglobulin and complement. The most common type of glomerular disease in cats.

mesangioproliferative glomerulonephritis

see membranoproliferative glomerulonephritis (above).

proliferative glomerulonephritis

glomerular changes are principally those of cellular proliferation.