Published online Apr 26, 2022. doi: 10.12998/wjcc.v10.i12.3916
Peer-review started: September 16, 2021
First decision: October 25, 2021
Revised: November 18, 2021
Accepted: March 6, 2022
Article in press: March 6, 2022
Published online: April 26, 2022
Anti-glomerular basement membrane (GBM) disease is a rare autoimmune disease manifesting as acute progressive nephritis syndrome with or without varying degrees of pulmonary hemorrhage. Anti-GBM disease coexisting with Immunoglobulin A (IgA) nephropathy is rarer and has different clinical manifestations and prognoses than simple anti-GBM disease. We describe a case of coexistence of these two diseases.
A 49-year-old man with hematuria and proteinuria accompanied by a slight elevation of serum creatinine was admitted to our hospital. The pathological results of renal biopsy and the elevated serum anti-GBM antibody titer supported a diagnosis of anti-GBM disease combined with IgA nephropathy. After treatment with corticosteroids and cyclophosphamide, the patient's serum creatinine was relatively stable, and the hematuria and proteinuria moderately improved in the subsequent six months.
Anti-GBM disease coexisting with IgA nephropathy is rare. The clinical manifestations and prognosis are better than those of simple anti-GBM disease. In this case, the patient's condition was improved and his renal function remained relatively stable with corticosteroid and cyclophosphamide treatment. New detection methods to identify whether the crescents in this case were derived from anti-GBM disease or IgA nephropathy are worthy of further exploration.
Core Tip: This case reported a rare disease with both anti-glomerular basement membrane (GBM) disease and Immunoglobulin A (IgA) nephropathy. Its clinical manifestations and prognosis are better than those of simple anti-GBM disease. The patient's condition was improved and the renal function was relatively stable with the treatment of corticosteroids and cyclophosphamide. About 70% of the glomeruli contained crescents, and multiple crescents formed in this patient's renal biopsy pathology. New detection methods to identify whether the crescents in this case were derived from anti-GBM disease or IgA nephropathy are worthy of further exploration.