View source for Absent radius

{{Infobox Disease
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 | ICD9           = {{ICD9|755.25}}
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==Overview==
'''Absent radius''' is a very rare medical condition in which the [[radius (bone)|radius bone]] is not developed. This results in a typical position of the arm in which the wrist is [[plantarflex]]ed and radially deviated.

The aetiology of radial club hand or radial dysplasia can be divided into:

# '''sporadic cases''', which are not inherited and are presumed to be due to de novo genetic mutations
# '''syndromal cases'''; certain syndromes have a higher than expected association with radial dysplasia. Typically, organ systems are affected that develop at the same time as the upper limb:
*VACTERL or [[VATER syndrome]]
*[[Holt-Oram syndrome]]
*[[Edwards syndrome]]
*[[haematopoietic syndromes]]:
**[[Fanconi anemia]]
**Thrombocytopaenia with Absent Radius ([[TAR syndrome]])
*craniofacial syndromes:
**[[Nager's syndrome]]
**[[Goldenhar's syndrome]]
**[[Mobius syndrome]]
**[[cleft lip and palate]]
**[[Treacher-Collins syndrome]]
*skeletal syndromes and isolated skeletal associations:
**[[Klippel-Feil syndrome]]
**[[Sprengel deformity]]
**[[syndactyly]]
**[[scoliosis]]
*teratogens:
**radiations
**[[valproic acid]]
**[[thalidomide]]

==External links==
* http://holt-oram.ning.com/ social network site for those affected by the condition

{{DEFAULTSORT:Absent Radius}}
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{{Congenital malformations and deformations of musculoskeletal system}}

[[Category:Genetic disorders]]

[[pl:Aplazja kości promieniowej]]
[[pt:Ausência congênita do rádio]]

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