[Sacral bone dysgenesis in a child whose mother has diabetes]. / Niedorozwój kosci krzyzowej u dziecka matki chorej na cukrzyce.

We introduced 2.5-year old girl with gait and miction disturbances as a result of sacral bone dysgenesis (only S1 existed) and abnormal position of nerve roots of medulla. The 28-year old mother of the child has been treated for diabetes mellitus type I since she was 15.