<unk>  is strongly associated with mutations of the fibroblast growth factor receptor 1 (FGFR1) on chromosome 8 or the fibroblast growth factor receptor 2 (FGFR2) gene on chromosome 10. These genes code for fibroblast growth factor receptors, which are important for normal bone development. Advanced paternal age is thought to be a risk factor for sporadic cases of<unk>  due to an increase in mutations in sperm as men become older.
Pfeiffer syndrome
Zechi-Ceide syndrome
Johanson–Blizzard syndrome
Gómez–López-Hernández syndrome
Sanjad-Sakati syndrome
Adams–Nance syndrome
Lucey–Driscoll syndrome
Twiddler's syndrome