Xanthogranulomatous pyelonephritis (XGP) is a well recognised but rare
type of chronic pyelonephritis classically occurring in middle-aged w
omen. It is increasingly being recognised in children in whom it can b
e mistaken for Wilms' tumour. Awareness of the possibility of this con
dition occurring in children may allow early recognition and possible
treatment. Two cases of XGP in children are described and the literatu
re reviewed.