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1 in 50,000 people [5] Treacher Collins syndrome (TCS) is a genetic disorder characterized by deformities of the ears, eyes, cheekbones, and chin. [5] The degree to which a person is affected, however, may vary from mild to severe. [5] Complications may include breathing problems, problems seeing, cleft palate, and hearing loss. [5]
Rheumatology. Saethre–Chotzen syndrome (SCS), also known as acrocephalosyndactyly type III, is a rare congenital disorder associated with craniosynostosis (premature closure of one or more of the sutures between the bones of the skull). This affects the shape of the head and face, resulting in a cone-shaped head and an asymmetrical face.
Individuals with the disorder usually have distinctive malformations of the craniofacial area including an unusually large head (macrocephaly), prominent forehead, and abnormal narrowing of both sides of the forehead (bitemporal constriction); The nose can be upturned and short with a low nasal bridge; and large ears that are abnormally rotated toward the back of the head.
Pierre Robin sequence [a] (/ p j ɛər r ɔː ˈ b æ̃ /; [3] abbreviated PRS) is a congenital defect observed in humans which is characterized by facial abnormalities.The three main features are micrognathia (abnormally small mandible), which causes glossoptosis (downwardly displaced or retracted tongue), which in turn causes breathing problems due to obstruction of the upper airway.
Crouzon syndrome is an autosomal dominant genetic disorder known as a branchial arch syndrome. Specifically, this syndrome affects the first branchial (or pharyngeal) arch, which is the precursor of the maxilla and mandible. Because the branchial arches are important developmental features in a growing embryo, disturbances in their development ...
Dagfinn Aarskog. Charles I. Scott Jr. Aarskog–Scott syndrome (AAS) is a rare disease inherited as X-linked and characterized by short stature, facial abnormalities, skeletal and genital anomalies. [2] This condition mainly affects males, although females may have mild features of the syndrome. [3][4]
Craniodiaphyseal dysplasia (CDD), also known as lionitis, is an extremely rare autosomal recessive bone disorder that causes calcium to build up in the skull, disfiguring the facial features and reducing life expectancy. These calcium deposits decrease the size of cranial foramina, and can decrease the circumference of the cervical spinal canal.
Craniofrontonasal dysplasia ( craniofrontonasal syndrome, craniofrontonasal dysostosis, CFND) is a very rare X-linked malformation syndrome caused by mutations in the ephrin-B1 gene ( EFNB1 ). [ 1][ 2] Phenotypic expression varies greatly amongst affected individuals, where females are more commonly and generally more severely affected than ...