Immunoglobulin A-dominant postinfectious glomerulonephritis: frequent occurrence in nondiabetic patients with Staphylococcus aureus infection.

Immunoglobin A-dominant postinfectious glomerulonephritis is a distinct clinicopathologic entity that has been linked to staphylococcal infection, including methicillin-resistant Staphylococcus aureus. An association with diabetic nephropathy has been suggested. Although the morphologic features resemble other forms of postinfectious glomerulonephritis, immunofluorescence shows dominant or codominant immunoglobulin A immune-complex deposits.