Polyarteritis nodosa (PAN) is a necrotizing angiitis that predominantly affects small- and medium-sized arteries. Polyarteritis nodosa occurs rarely during childhood. Boys and girls seem to be… (More)
Steroid-resistant nephrotic syndromes often are resistant to additional immunosuppressive agents and tend to progress to end-stage renal disease. Genetic studies in children with familial nephrotic… (More)