Clinical symptoms: fever, often with chills, costovertebral pain and tenderness, abdominal pain, nausea vomit, in many cases with cystitis symptoms.Laboratory data show evidence of UTI (positive urine culture, leucocyturia, white cell casts), acute phase reaction (increase in ESR, CRP, fibrinogen) and leucocytosis. Bacteraemia may occur in a minority of patients.Diagnosis was made by CT, MR and renal scintiscan (Tc-99 DMSA)