title: IgA nephropathy: Henoch-Schönlein purpura and Berger's disease in one patient.
abstract: A patient is described who had an attack of Henoch-Schönlein purpura with no renal dysfunction at 4 years of age. She recovered with conservative management. There were no further episodes of Henoch-Schönlein purpura and her urinalysis remained normal for the next 11 years. At age 15, she developed repeated bouts of gross hematuria and proteinuria, and a renal biopsy was performed 3 years later. Light microscopy showed mesangial proliferative glomerulonephritis with granular, mesangial deposits of IgA by immunofluorescence and numerous, electron-dense deposits in mesangial regions by electron microscopy. These findings were consistent with a diagnosis of Berger's disease. The occurrence of Henoch-Schönlein purpura at 4 years and Berger's disease at 15 years in the same patient suggests that these two conditions are related.
mesh_terms: D000293:Adolescent; D001706:Biopsy; D002675:Child, Preschool; D005260:Female; D005922:Glomerulonephritis, IGA / Q000150:complications* / Q000473:pathology; D006801:Humans; D011695:IgA Vasculitis / Q000150:complications* / Q000473:pathology