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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There are two distinct genetic mutations associated with the Antley—Bixler syndrome phenotypewhich suggests the disorder may be genetically antleyy. Summary Epidemiology It has been described in more than 30 patients. Symptoms can vary from mild to severe. Chromosomes are further subdivided into bands that are numbered. C ] – Some patients have only ambiguous genitalia or other evidence of disordered steroidogenesis [UMLS: Biochemical diagnosis of Antley-Bixler syndrome by steroid analysis.

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

Clinical Synopsis Toggle Dropdown. In recessive disorders, the condition does not appear unless a person inherits the same defective gene for the same trait from each parent. Prognostic and therapeutic aspects.

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CASR Familial hypocalciuric hypercalcemia. Diversity and function of mutations in P oxidoreductase in patients with Antley-Bixler syndrome and disordered steroidogenesis.

Rare Disease Database

Apert Syndrome is also known as Acrocephalosyndactyly Type I. Congenital adrenal hyperplasia without Antley-Bixler skeletal anomalies syndroke also result from POR mutations For example, the disorder is typically associated with premature closure of the fibrous joints cranial sutures between particular bones of the skull craniosynostosis.

Antley-Bixler Syndrome is typically characterized by distinctive malformations of the head and facial craniofacial area.

The bones of the shoulder and the pelvis are often abnormal.

Antley-Bixler syndrome from a prognostic perspective: Differential diagnosis A similar clinical picture is observed in patients exposed in utero to fluconazole, a lanosterol 14 alpha-demethylase inhibitor. Together we are strong. Other treatment is symptomatic and supportive.

Achondroplasia Hypochondroplasia Thanatophoric dysplasia. Two genetically distinct forms are observed: Eur J Pediatr ; J Med Genet ; This disorder is characterized by various craniofacial and skeletal abnormalities. Primary Craniosynostosis is a rare disorder of the skull that may be inherited as an autosomal dominant or autosomal recessive genetic trait.


Musculoskeletal manifestations of the Antley-Bixler syndrome. In some cases, a diagnosis of Antley-Bixler Antleyy may be suggested before birth prenatally based eyndrome specialized tests such as ultrasound. Achondrogenesis type 1B Autosomal recessive multiple epiphyseal dysplasia Atelosteogenesis, type II Diastrophic dysplasia.

When grown in the absence of cholesterol to stimulate cholesterol biosynthesis, cells from this patient accumulated markedly increased levels of lanosterol and dihydrolanosterol.

Am J Med Genet. This article has been cited by. By contrast, milder mutations in POR may manifest as mild disorders of steroid synthesis. Cell surface receptor deficiencies. The gene that encodes the fibroblast growth factor receptor-2 protein has been antlley to the long arm q of chromosome 10 10q