Anti-Glomerular Basement Membrane Disease Combined with IgA Nephropathy: A Case Report and Literature Review.

Anti-glomerular basement membrane (GBM) disease is a rare autoimmune disease characterized by injury to small blood vessels in the kidneys and/or lungs. IgA nephropathy is the most common primary glomerular disease diagnosed in China. However, the co-occurrence of anti-GBM illness and IgA nephropathy has been infrequently documented in the literature. At present, its mechanism is unknown, the treatment approach is unclear, and the prognosis remains poor. Herein, we report a case of anti-GBM disease complicated with IgA nephropathy, in which renal function returned to normal state following treatment with a combination of prednisone and cyclophosphamide. This case suggests that in patients with anti-GBM disease and IgA nephropathy, the combination of glucocorticoids and cyclophosphamide may serve as an optimum treatment choice.