Cutaneonephrobronchial fistula: an unusual presentation of an inadequately treated perinephric abscess.

We report a case of cutaneonephrobronchial fistula secondary to an inadequately treated perinephric abscess associated with a staghorn calculus. The patient, a 72-year-old lady, was initially treated for a superficial flank abscess by incision and drainage. She returned 4 months later with a persistent discharging flank sinus, at which time the above complex pathology was diagnosed. We review similar cases in the literature and discuss pathophysiology and current management of perinephric abscesses.