Craniofrontonasal dysplasia is a very rare X-linked malformation syndrome caused by mutations in the ephrin-B1 gene (EFNB1). Phenotypic expression varies. Disease definition. Craniofrontonasal dysplasia is an X-linked malformation syndrome characterized by facial asymmetry (particularly orbital), body asymmetry. Learn in-depth information on Craniofrontonasal Dysplasia, its causes, symptoms , diagnosis, complications, treatment, prevention, and.
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Years Published, In addition, one shoulder may be unusually high due to the failure of the major dysplasai of the shoulder scapula to move into the appropriate position during fetal development Sprengel deformity. Dyskeratosis congenita Hypohidrotic ectodermal dysplasia EDA X-linked ichthyosis X-linked endothelial corneal dystrophy.
Long-term results after 40 years experience with treatment of rare facial clefts: CCC ]. Craniofrontonasal syndrome is an X-linked developmental disorder cranuofrontonasal shows paradoxically greater severity in heterozygous females than in hemizygous males.
A novel EFNB1 mutation c.
About News Events Contact. From Wikipedia, the free encyclopedia. In addition, there was bilateral cryptorchidism.
Rare Disease Database
Nine cases were familial, and 29 cases were sporadic. Frontonasal dysplasia is a heterogeneous disorder. One affected member, who had 4 miscarriages, had an arcuate uterus; she also had curly hair, grooved fingernails, and unilateral breast hypoplasia.
The head typically has an unusual shape due to premature closure of the fibrous joints sutures between certain bones in the skull coronal synostosis resulting in facial asymmetry. Diagnosis A diagnosis of CFND may be suspected after a thorough clinical evaluation and characteristic physical findings. Comparisons may be useful for a differential diagnosis: Treatment of CFND depends upon the specific malformations and their severity in each individual patient, and the timing of diagnosis.
In addition, the urinary opening may be misplaced, such as on the underside of the penis hypospadias.
Please click here for more information. Blackwell Scientific Publications, All 6 patients had documented coronal craniosynostosis and exhibited severe hypertelorism; other features dsyplasia agenesis of the corpus callosum, bifid nasal tip, longitudinally split nails, cryptorchidism, and mild learning disability.
Alport syndrome Dent’s disease X-linked nephrogenic diabetes insipidus.
Archived from the original PDF on Headlines is almost entirely funded by donations. Molecular genetic testing for mutations in the EFNB1 gene is available to confirm the diagnosis. Craniofrontonasal dysplasia–a distinct entity with lethality in the male?
OMIM Entry – # – CRANIOFRONTONASAL SYNDROME; CFNS
Johnson suggested that some disorders may dyxplasia up only in heterozygotes as a result of adverse interaction of 2 alleles, neither of which occasions abnormality when homozygous or hemizygous.
Standard Therapies Treatment Treatment of CFND depends upon the specific malformations and their severity in each individual patient, and the timing of diagnosis. As such there is little information and no consensus in the published literature regarding the epidemiological statistics.
One male with 2 affected daughters and no other children was judged to be unaffected or to have at the most ‘microsymptoms. Expanding the phenotype of craniofrontonasal syndrome: Common features in girls: Other physical characteristics sometimes associated with CFND may include narrow sloping shoulders.
One craniofgontonasal of an affected female was considered to be affected because of hypertelorism with an inner canthal distance greater than the 97th centile at 9 years of age. Both sons had no major craniofacial features other than telecanthus, but both had congenital diaphragmatic hernia. Kwee and Lindhout reported a 2-year-old boy, born of nonconsanguineous Dutch parents, who exhibited brachycephaly with a broad, prominent forehead, retracted supraorbital ridges, severe ocular hypertelorism, downslanting palpebral fissures, broad nasal bridge, and broad bifid tip of the nose.
In addition, the head may have an unusual shape due to premature closure of the fibrous joints sutures between certain bones in the skull coronal synostosis. Investigational Therapies Information on current clinical trials is posted on the Internet at www.
Am J Hum Genet. This is called a mosaic pattern. Wieacker P, Wieland I.