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Am J Dis Child. 1915;IX(5):446-454. doi:10.1001/archpedi.1915.04100470095009.
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Acrocephalosyndactylism or acrosphenodactylism represents an unusual pathologic or teratologic type which was described at length by Apert1 in 1906; recently Sterling2 has summarized the reports of Apert and his predecessors in a brief review of the nine cases which constitute the basis for the literature of the subject to date. The condition conforms in general to the following description:

The skull is flattened posteriorly in such a manner that the external occipital protuberance is lacking; the squamous portion of the occipital bone is smooth and vertical; just above the lambdoid suture the skull bends forward and upward, reaching its maximum height at the bregma, where it meets, at rather an acute angle, the plane of the forehead and face. Although the frontal area has in general a vertical direction, there is a bulging in the transverse axis of the middle portion, which is separated from the arcus superciliares


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