Photoanthropometric study of facial growth in Noonan syndrome.

We present a photoanthropometric analysis of 104 individuals with Noonan syndrome. The study contained 53 males and 51 females with an age range of one to 60 years (mean 13.8 years). The results provide an objective evaluation of facial abnormality in Noonan syndrome. Individuals with Noonan syndrome are demonstrated to have an increased mid face height, hypertelorism, retrognathia, a lower nasal bridge and nasal root, a wider mouth, a more prominent upper lip, and apparently lower set ears than normal control individuals. Within the patient group an apparent alteration of facial structure was noted with increasing age, suggesting that remodelling of the characteristic face in Noonan syndrome may occur into adult life.