Findings on nuclear renal scans suggest that the vast majority of infants and young children with febrile UTIs have acute pyelonephritis (APN, upper-tract infection). Early recognition and prompt ...

Cystitis is the term used for localized bladder infection, whereas pyelonephritis refers to ... Can a Silent Kidney Infection or Genetic Predisposition Underlie Recurrent UTIs?

Current guidelines recommend that children with acute pyelonephritis are initially treated with a parenteral third-generation cephalosporin such as ceftriaxone, and then oral antibiotics.