The rare case of an extraperitoneal ureteral herniation into the inguinal canal of a 12-year-old boy.

Ureteric herniation into the inguinal canal is a rare condition in adults and even more so in the paediatric population. These hernia types can be categorised as paraperitoneal or extraperitoneal. The former are the only varieties encountered in the paediatric literature, where patients are generally infants, while the latter phenomenon is seen in 20% of ureteric herniations in adults. We present a case of an extraperitoneal ureteric herniation into the inguinal canal in a 12-year-old boy with previous surgery for cloacal exstrophy, analyse the existing literature on the condition and make the speculation that the extraperitoneal variety is an adult variant seen in this child because of weakness in the surrounding structures as a result of previous surgery.