Association of bilateral renal agenesis and Di George syndrome in an infant of a diabetic mother.

We found at postmortem examination the association of bilateral renal agenesis and of apparently complete Di George syndrome in an infant whose mother was diabetic. Vertebral abnormalities and hallux duplication were present as well. There is a correlation between maternal diabetes and the bilateral renal agenesis-caudal dysplasia complex on one hand, and maternal diabetes and cardiac malformations on the other hand. Moreover, it has been suggested that the absence of thymus and parathyroids in Di George syndrome is causally linked to the cardiac malformation. Therefore we suggest that the association in our case is not coincidental; both sets of malformations may be due to the maternal diabetes.