Presentation
Many of the characteristic facial features that Pfeiffer described in Pfeiffer syndrome result from the premature fusion of the skull bones. The head is unable to grow normally, which leads to eyes that appear to bulge (proptosis) and are wide-set (hypertelorism), an underdeveloped upper jaw, and a beaked nose. About 50 percent of children with Pfeiffer syndrome have hearing loss (see hearing loss with craniofacial syndromes), and dental problems are also common. Broad thumbs and toes are extra-cranial features of this syndrome.
In people with Pfeiffer syndrome, the thumbs and first (big) toes are wide and bend away from the other digits. Unusually short fingers and toes (brachydactyly) are also common, and there may be some webbing or fusion between the digits (syndactyly).
Read more about this topic: Pfeiffer Syndrome
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