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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In the absence of POR, environmental toxins and drugs that are usually metabolized to benign products by hepatic P enzymes may achieve teratogenic concentrations. Such treatment may require the coordinated efforts of a team of medical professionals who may need to systematically and comprehensively plan an bixer child’s treatment. Camptomelic Syndrome is a rare congenital skeletal disorder that is inherited as an autosomal recessive genetic trait.

This gene regulates encodes the production of a protein known as a fibroblast growth factor receptor FGFR. In Kleeblattschadel Deformity, a type of Craniosynostosis, there is premature closure of multiple or all bones of the skull. Antley-Bixler syndrome with radioulnar synostosis. Carpenter Syndrome is a form of craniosynostosis, marked by the premature closure of the bones of the skull resulting in an abnormally shaped head.

According to researchers, genetic mutations that disrupt the functioning of such proteins may result in certain bisler during embryonic synvrome, such as malformations of the craniofacial area and the limbs. Intellectual development is variable.

Rare Disease Database

The forehead may bulge and the orbit of the eye may be flat on one side. Together we are strong. Comparisons may be useful for a differential diagnosis:.


Abnormalities, Multiple, genetics,radiography,Case Report, Contracture, genetics,radiography,Craniosynostoses, genetics,radiography,Human, Infant, Male, Marfan Syndrome, genetics,radiography,Syndrome, Synostosis, genetics,radiography.

Crisponi G, et al. Raine syndrome Osteopoikilosis Osteopetrosis. This article has been cited by. Because fluconazole is a strong inhibitor of lanosterol alpha-demethylase CYP51A1;Kelley et al.

This disorder is also known as Acrocephalosyndactyly Type V. Symptoms of the following disorders can be similar to those of Antley-Bixler Syndrome. In a few individuals with symptoms characteristic of Antley-Bixler Syndrome, associated abnormalities have appeared to result from maternal use of the antifungal medication fluconazole during early pregnancy.

Gorlin RJ, et al. Radiohumeral synostosis, femoral bowing, other skeletal anomalies, and anal atresia, a variant example of Antley-Bixler syndrome?

Antley–Bixler syndrome – Wikipedia

As mentioned above, sporadic dominant mutations of the FGFR2 gene have been identified in some individuals with Antley-Bixler Syndrome. Antley-Bixler syndrome from a prognostic perspective: Achondrogenesis type 2 Hypochondrogenesis. Alone we are rare. Etiology Two genetically distinct forms are observed: Cell surface receptor deficiencies. Urogenital anomalies with sexual ambiguity due to impaired steroidogenesis can occur.

From Wikipedia, the free encyclopedia. This page was last edited on 10 Novemberat Bottero L, et al. The treatment of Antley-Bixler Syndrome is directed toward the specific symptoms that are apparent in each individual.

Antich J, et al. J Postgrad Bidler ; LeHeup BP, et al. In individuals with disordered steroidogenesis buxler bony features of Antley-Bixler syndrome, including the patient reported by Kelley et al. This disorder sjndrome characterized by various craniofacial and skeletal abnormalities.

Two genetically distinct forms are observed: Twenty-five percent of their children may receive both normal genes, one from each parent, and will be genetically normal for that particular trait. The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment. Antley-Bixler Syndrome often appears to be inherited as an autosomal recessive trait.


Not Antley-Bixler syndrome [letter]. Symptoms can vary from mild to severe.

The head has a long narrow appearance with a pointed top acrocephaly or oxycephaly and some fingers may be webbed syndactyly. Multiple malformation syndrome following fluconazole use in pregnancy: In addition, certain joints may become permanently flexed or extended in fixed postures joint contracturesresulting in restricted movements.

The severity of the symptoms and shape of the skull depend on which skull bones are prematurely closed. Apert Syndrome is a rare inherited disorder characterized by mental retardation along with malformations of the head, fingers, and toes.

Aside from genital anomalies and disordered pattern of steroidogenesis present in patients with POR mutations, no dysmorphic feature appears to distinguish the 2 groups.

In recessive disorders, the condition does not appear unless a person inherits the same defective gene for the same trait from each parent.

Birth Defects Orig Art Ser. Premature closure of the bones sutures in the skull result in an abnormally shaped head.