A number of syndromes with cranial dysostosis as the outstanding feature, associated with abnormalities of the body, have been described. They can be classified in the following six groups, which seem rather well defined clinically: (1) oxycephalia, first described by Virchow1 in 1856; (2) acrocephalosyndactylia. mentioned by Apert2 in 1906; (3) la dysostose cleidocranienne héréditaire of Marie and Sainton3 (1898); (4) dysostose cranio-faciale héréditaire described by Crouzon4 in 1912; (5) dystrophia periostalis hyperplastica familiaris described by Dzierzynsky5 in 1913, and (6) ocular hypertelorism described by Greig6 in 1924.
In addition to these six groups, we feel that there is still another syndrome that can be sharply differentiated. We have observed four cases of this seventh type in addition to two identified from pictures. These six, with two reported by Hurler,7 one case by Jewesbury and Spence8 and one by Putnam and Pelkan,