Primary membranoproliferative glomerulonephritis

What it is

A rare glomerular disease characterized by a pattern of glomerular injury on kidney biopsy with characteristic light microscopic changes: mesangial hypercellularity, endocapillary proliferation, and thickening of the glomerular basement membrane (GBM). On the basis of immunofluorescence (IF) the disorder is divided into C3 glomerulopathy (C3G) or immunoglobulin-mediated membranoproliferative glomerulonephritis. Through electron microscopy C3G is further divided into Dense deposit disease, with highly electrondense deposits in the glomerular basement membrane, and C3 glomerulonephritis, with mesangial, intramembranous, subendothelial and subepithelial deposits. Secondary causes (autoimmune, infectious, malignancies) are excluded.

Key facts

Prevalence

1-5 / 10 000 (Europe)

Age of onset

Adult

Inheritance

Not applicable

Classified as

Disease

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

Signs and symptoms

These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.

Genes reported in subtypes

Orphanet records this gene on 1 more specific entry under this disorder, not on this entry itself:

A well-studied disease is usually split into subtypes, and the gene is curated on whichever one the evidence belongs to. Open a subtype to see which gene goes with it.

ICD-10 codes

Cross-references