{Reference Type}: Case Reports {Title}: [Association of COVID-19 and glomerulonephritis with ANCA and anti-glomerular basement membrane antibodies. Report of one case]. {Author}: Briones E;Méndez GP;Laguna J;Vargas M; {Journal}: Rev Med Chil {Volume}: 150 {Issue}: 6 {Year}: 2022 Jun {Factor}: 0.686 {DOI}: 10.4067/S0034-98872022000600828 {Abstract}: Renal involvement in COVID-19 infection is varied and worsens its outcome and prognosis. However, the association of COVID-19 infection with glomerulonephritis is exceptional. We report a 46-year-old woman with COVID-19 who had an acute kidney injury and ANCA associated glomerulonephritis two weeks after the onset of the disease. The kidney biopsy showed a crescentic glomerulo-nephritis and the presence of anti-glomerular basement membrane antibodies (GBM-Abs). She was treated with steroids and oral cyclophosphamide with good response without requiring plasmapheresis. Plasma anti GBM-Abs were negative. This case suggests that the presence of anti-GBM-Abs in the kidney, was temporally related to COVID-19 pulmonary damage. The absence of plasma antibodies is probably due to transient production and glomerular adsorption, but with unknown pathogenic role.