Acute glomerulonephritis: three episodes demonstrated by light and electron microscopy, and immunofluorescence...

The patient, a white boy, had 3 episodes of recurrent acute glomerulonephritis at 7, 12 and 17 years of age. The episodes were preceded by impetigo and there was a good clinical and laboratorial recovery after all of them. Renal biopsies were performed during the acute episodes, and the light, immunofluorescence and electron microscopy studies showed only lesions typical of acute glomerulonephritis. Four months after the third episode another renal biopsy demonstrated only lesions compatible with the subsiding stages of acute glomerulonephritis.