[Familial form of ureterocele with double ureter: 2 sisters and their father].

Double ureter is a frequent congenital malformation and the presence of a ureterocele on the ureter draining the superior renal pelvis is a not exceptional association. The abnormality is usually diagnosed in children by intravenous urography or ultrasound. It is extremely rare to find such a lesion in different members of the same family, as only a few cases have been published in the literature. Our case is original in that three members of the family presented the abnormality and it was the father who was affected, rather than the mother, as in the cases reported in the other two publications.