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  • Title: IgG-associated primary glomerulonephritis in children.
    Author: Yoshikawa N, Iijima K, Shimomura M, Nakamura H, Ito H.
    Journal: Clin Nephrol; 1994 Nov; 42(5):281-7. PubMed ID: 7851027.
    Abstract:
    Ten children with IgG-associated primary diffuse mesangial proliferative glomerulonephritis are presented. All cases showed diffuse global IgG deposits in the mesangium. IgG was the sole immunoglobulin deposited in the mesangium in 8 patients and was the predominant immunoglobulin in 2. C3 was also present in 8 patients. Light microscopy revealed variable diffuse and global mesangial proliferation in all cases, with additional focal segmental glomerular sclerosis in one. On electron microscopy, electron-dense deposits in the mesangium were identified in all patients. Clinically, 4 patients presented with the steroid-resistant nephrotic syndrome, and 6 had proteinuria and hematuria. At the latest follow-up, renal function was normal in all patients, 6 showed clinical remission and 4 had slight proteinuria and/or hematuria. These data suggest that there is a clinicopathologic entity, IgG-associated glomerulonephritis, characterized by diffuse mesangial proliferation, predominant mesangial IgG deposition, variable clinical presentation, and a relatively benign course.
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