Renal involvement in Wegener's granulomatosis. Report of three unusual cases.

Three patients with rapidly progressive glomerulonephritis due to Wegener's granulomatosis are described. In one patient, acute renal failure was initially the sole manifestation of the disease. Treatment of the two other patients with prednisone and cyclophosphamide resulted in a remarkable recovery of renal function even after a prolonged period of hemodialysis. These cases illustrate that early and sustained treatment with prednisone and cyclophosphamide can restore an adequate renal function in patients with anuria or severe glomerulonephritis due to Wegener's disease.