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When these are subjected to immunofluorescence, three patterns can be observed: linear, granular and negative (pauci-immune). [1] The linear and granular patterns are examples of positive immunofluorescence that are associated as follows: Goodpasture syndrome (linear pattern), post-streptococcal glomerulonephritis (granular), and diffuse ...
The neutrophils bind to p-ANCAs and subsequently release inflammatory cytokines, reactive oxygen species and lytic enzymes that cause endothelial injury resulting to inflammation and necrosis of the small vessels. [4] The damage that is caused in the kidneys is specifically called necrotizing and crescentic glomerulonephritis. [5]
Type 3 rapidly progressive glomerulonephritis, also called pauciimmune type, is associated with causes of vascular inflammation including granulomatosis with polyangiitis (GPA) and microscopic polyangiitis. No immune deposits can be seen on staining, however blood tests may be positive for the ANCA antibody. [4]: 558–559
Immunoglobulin A (IgA) vasculitis, formerly referred to as Henoch–Schönlein purpura, is a type of immune complex vasculitis that primarily affects IgA deposits in small vessels. Acute enteritis, glomerulonephritis, arthralgias and/or arthritis, and cutaneous purpura are the most common clinical manifestations. Children are more likely than ...
Characterized by deposition of immune complexes in glomerular tissues, type II RPGN accounts for 40 [11] % of cases. Any immune complex disease—including systemic lupus erythematosus, acute proliferative glomerulonephritis, Henoch–Schönlein purpura, and IgA nephropathy—that involves the glomerulus may progress to RPGN if severe enough. [2]
These presenting symptoms are relatively non-specific and are often seen in other glomerular disorders. Preceding upper respiratory tract infection or post-streptococcal glomerulonephritis may contribute to hematuria, as both have been identified in patients presenting with hematuria in the context of mesangial proliferative glomerulonephritis. [2]
The cause of diffuse proliferative glomerulonephritis (DPGN) depends on the severity of the disease. DPGN is a secondary disease, in that a disease that a patient already has causes DPGN to occur. The most common associated disease of DPGN is severe systemic lupus erythematosus(SLE). [4] Specifically, Lupus nephritis class IV. [5]
Acute proliferative glomerulonephritis is a disorder of the small blood vessels of the kidney.It is a common complication of bacterial infections, typically skin infection by Streptococcus bacteria types 12, 4 and 1 but also after streptococcal pharyngitis, for which it is also known as postinfectious glomerulonephritis (PIGN) or poststreptococcal glomerulonephritis (PSGN). [4]