Scrotal extension of emphysematous pyelonephritis.

We report an extensive form of emphysematous pyelonephritis (EPN) in the right kidney extending from the anterior abdominal wall to the scrotum in a patient with renal calculi with obstructive uropathy and describe the progression route of infection from retroperitoneum to scrotum. Such an extensive occurrence of EPN is very rare. The patient succumbed after 48 h despite aggressive treatment.