A number sign (#) is used with this entry because of evidence that Antley-Bixler syndrome with disordered steroidogenesis (ABS1) is caused by homozygous or. Antley–Bixler syndrome, also called trapezoidocephaly-synostosis syndrome, is a rare, very severe autosomal recessive congenital disorder characterized by. This page from Great Ormond Street Hospital (GOSH) explains the causes, symptoms and treatment of Antley-Bixler syndrome and where to get help.

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Some individuals with Antley-Bixler Syndrome may have additional physical abnormalities. Chromosomes are found synddome the nucleus of all body somatic cells. Detailed information Professionals Clinical genetics review English This article has been cited by. In some cases, a diagnosis of Antley-Bixler Syndrome may be suggested before birth prenatally based upon specialized tests such as ultrasound.

Carpenter Syndrome is a form of craniosynostosis, marked by the premature closure of the bones of the skull resulting in an abnormally shaped head. Antich J, et al. Congenital adrenal hyperplasia without Antley-Bixler skeletal anomalies can also result from POR mutations J Pediatr Orthop B.


The risk of transmitting the disorder from affected parent to offspring is 50 percent for each pregnancy regardless of the sex of the bixlre child. Other treatment is symptomatic and supportive. Antley-Bixler Syndrome is typically characterized by distinctive malformations of the head and facial craniofacial area.

Diversity and function of mutations in P oxidoreductase in patients with Antley-Bixler syndrome and disordered steroidogenesis. Aromatase deficiency Aromatase excess syndrome.

In recessive disorders, if both parents carry the same gene for the same disease trait, there is an increased risk that their children may inherit the two genes necessary for development of the disease. The parents of an individual with an autosomal recessive disorder both carry one copy of the defective gene but are usually not affected by the disorder. Obesity and heart anomalies may also occur. Other physical characteristics may include webbed fingers and a variety of skeletal deformities.

Orphanet: Antley Bixler syndrome

Other search option s Alphabetical list. Musculoskeletal manifestations of the Antley-Bixler syndrome. Alone we are rare. The characteristic manifestations include craniosynostosis, radiohumeral synostosis, midface hypoplasia, joint contractures and arachnodactyly.

Antley Bixler Syndrome – NORD (National Organization for Rare Disorders)

The head is typically abnormally shaped and the eyes may be low-set. Cell surface receptor deficiencies. Antley-Bixler syndrome in sisters: Antley—Bixler syndrome has an autosomal recessive pattern of inheritance. Many affected infants and children also may have a prominent forehead, underdeveloped midfacial regions midfacial hypoplasiaprotruding eyes proptosisand other craniofacial abnormalities.


Achondroplasia Hypochondroplasia Thanatophoric dysplasia. This condition causes the head to from a cloverleaf shape. In many cases, the disorder appears to be inherited as an autosomal recessive trait. Not Antley-Bixler syndrome [letter].

Antley–Bixler syndrome

Antley-Bixler syndrome is a very rare disorder characterised by craniosynostosis with midface hypoplasia, radiohumeral synostosis, bixlerr bowing and joint contractures. American Journal of Medical Genetics. Causes The specific underlying cause of Antley-Bixler Syndrome remains unclear.

Genetic counseling Transmission is autosomal recessive. Spectrum of Antley-Bixler syndrome.

In such cases, without prompt, appropriate treatment, potentially life-threatening complications may result. D ICD –