Enfermedad mediada por autoanticuerpos IgA anti-membrana basal glomerular

Anti-glomerular basement membrane disease (anti-GBM) is a rare disease usually mediated by IgG autoantibodies. It usually presents as rapidly progressive glomerulonephritis, often accompanied by pulmonary hemorrhage.1 The hallmark of anti-GBM disease are the blood circulating and tissue-bound autoantibodies that target antigenic sites within the glomerular basement membrane (GBM) and sometimes alveolar basement membranes. We present a rare case of anti-GBM disease mediated by IgA autoantibody. A 65-year-old-man presented with gross haematuria and nephrotic range proteinuria and was admitted to the hospital