[Acute lobar nephronia. Report of a pediatric case].

Objective: A case of lobar nephronia in a child is presented.
Methods: Herein we describe a case of acute lobar nephronia in a 10-year-old boy. The clinical, diagnostic and therapeutic aspects are discussed.
Results/conclusions: Acute lobar nephronia or acute focal bacterial nephritis is an uncommon form of pyelonephritis that can affect both adults and children, although few cases have been reported in children. Imaging techniques are necessary for diagnosis and to distinguish it from other conditions, such as abscess or renal masses that require a different treatment. Ultrasound is the imaging technique of choice in the diagnosis and follow-up of lobar nephronia.