Abstract
We report a child case of IgA nephropathy associated with Takayasu's arteritis. A 12 year old girl tested positive to both microscopic hematuria and proteinuria after a school urinary screening program. Renal biopsy further revealed a case of mild IgA nephropathy. After the biopsy, the patient showed signs of intermittent pyrexia and had a high level of CRP. Pulsatile swelling of the left side of the neck was noted about seven weeks later, and ultrasound revealed an irregular widening of the left internal carotid artery. CT and MRI angiography also disclosed arterial lesions leading to the diagnosis of Takayasu's arteritis. Previously, we have not found any child case reports of IgA nephropathy associated with Takayasu's arteritis. The patient had an HLA locus, DQ4, which is frequently detected in patients with IgA nephropathy, but didn't have the loci associated with Takayasu's arteritis.
