Quantitative investigation of sudanophilic lesions around the aortic ostia of human fetuses, newborn and children.

The sudanophilic lesions around the aortic ostia of 10 fetus, 10 newborns and 10 children aged up to 1 year were studied using a polar coordinate mapping method. The periorificial sudanophilic lesions develop initially distal to the orifices and show a continuous increase with age in percentage and extent. In children the lesions nearly completely surround all the ostia with a significant distal peak. There was no sex difference; the involvement of the right and left side was comparable. The comparison of the morphological data from the parents and children with anamnestics showed no relationship.