The disorder can appear as acute, rapidly progressive.
Berger disease also known as primary IgA nephropathy and glomerulonephritis. IgA nephropathy is a kidney disorder designated by blood in the urine. It is caused by inflammation of within kidney structures and the deposit of IgA antibodies in kidney tissue. IgA nephropathy can occur in persons of all ages, but most often affects males in their teens to late 30s. IgA nephropathy (Berger’s disease) is a form of mesangial proliferative nephritis. Structures in the kidney called glomeruli become inflamed, and a type of antibody called IgA deposits in the kidney.