Immunoglobulin A nephropathy (IgAN), also known as Berger's disease, is the most frequent primary glomerulonephritis characterized by the presence of IgA immune complexes in the glomeruli [1]. It generally appears in the second and third decade of life, has a higher incidence in males and is more common in whites than in blacks with a higher prevalence in Asians than Caucasians [1].
