Impacted urethral stone presenting as urinary retention in a child.

A seven-year-old boy was referred to our Accident and Emergency department with a history of urinary retention secondary to urinary tract infection and an inability to pass a urethral catheter. He had been treated a month before for suspected pyelonephritis by the referring hospital. Attempts at urethral catheterisation failed, and he was taken to theatre for cystourethroscopy and catheter placement. At this time, an impacted urethral stone was discovered. Because it could not be dislodged, a suprapubic catheter was placed, and the child was brought back at a later date for definitive management. Investigations revealed a pure calcium oxalate stone that was secondary in origin. There has been no recurrence during a follow-up period of 6 months.This illustrates that while rare, urethral stones do occur in children and should be considered in children presenting with urinary retention, haematuria and/or abdominal pain.