Late development of purpura in a patient with glomerulonephritis
Cybulsky, A.V.; Jothy, S.; Seely, J.F.
Canadian Medical Association Journal 130(2): 149-152
1984
ISSN/ISBN: 0008-4409 PMID: 6692193 Document Number: 240986
A 20-year-old man with a 10-year history of glomerulonephritis presented with a purpuric rash on his legs. A renal biopsy specimen obtained when he was 11 years old had shown mesangial glomerulonephritis; staining 9 years later for IgA had negative results. A second renal biopsy, performed when the rash was present, revealed mesangial glomerulonephritis and mesangial deposits of IgA; biopsies of the involved skin showed leukocytoclastic vasculitis. In this case isolated glomerulonephritis appeared to change to a multisystem illness, with a different immunologic character, through one of several possible pathogenetic mechanisms.