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Kuskokwim syndrome

Kuskokwim syndrome is characterised by joint deformities called contractures that restrict the movement of affected joints. This condition has been found only in a population of Alaska Natives known as Yup'ik Eskimos, who live in and around a region of southwest Alaska known as the Kuskokwim River Delta.

Description

Kuskokwim syndrome is characterised by joint deformities called contractures that restrict the movement of affected joints. This condition has been found only in a population of Alaska Natives known as Yup'ik Eskimos, who live in and around a region of southwest Alaska known as the Kuskokwim River Delta.

In Kuskokwim syndrome, contractures most commonly affect the knees, ankles, and elbows, although other joints, particularly of the lower body, can be affected. The contractures are usually present at birth and worsen during childhood. They tend to stabilize after childhood, and they remain throughout life.

Some individuals with this condition have other bone abnormalities, most commonly affecting the spine, pelvis, and feet. Affected individuals can develop an inward curve of the lower back (lordosis), a spine that curves to the side (scoliosis), wedge-shaped spinal bones, or an abnormality of the collarbones (clavicles) described as clubbing. Affected individuals are typically shorter than their peers and they may have an abnormally large head (macrocephaly).

Inheritance patterns

The source lists the following possible inheritance patterns: Autosomal recessive. More than one pattern can apply in different cases.

Other names

Arthrogryposis-like syndrome

Bruck syndrome 1

Kuskokwim disease

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Historique de l'article

Les informations sur cette page sont rédigées et examinées par des cliniciens qualifiés.
  • 28 Sept 2020 | Dernière version
  • 1 Nov 2013 | Publié à l'origine

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