Polyarteritis nodosa: chronic renal failure with spontaneous recovery.

A 57-year-old male developed acute oliguric renal failure due to polyarteritis nodosa (PAN). He went on rapidly to chronic renal failure. After nine months of home hemodialysis, he recovered renal function with creatinine clearance of 30 ml/min. This patient was not treated with drugs of any type for his illness. He represents a spontaneous remission from severe renal PAN and underscores the need for further evaluation of the current recommended drug therapy for this disease.