[Acute idiopathic interstitial nephritis: report of a case].

: The Authors report the case of a 9 years old girl with acute intestitial nephritis. The clinical picture was characterized by the association of nonspecific systemic symptoms, poliuria, acute renal failure with signs of tubular disfunctions. There was no evident inciting agent of the disease. The patient experienced rapid improvement of both symptoms and laboratory parameters with normalization of the renal function.