IgA nephropathy associated with Takayasu's arteritis: report of a case and review of the literature.

We report the case of a patient with Takayasu's arteritis, nephrotic syndrome, and pANCA. The kidney biopsy specimen showed the classic features of IgA nephropathy. The course of this patient supports the view that the glomerular and vasculitic involvements of Takayasu's arteritis may result from a common immunologic mechanism, and cases with urinary abnormalities should be carefully followed for the possible coexistence of glomerulonephritis.