Английская Википедия:Crane–Heise syndrome

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The Crane–Heise syndrome is a very rare and lethal birth defect without a known cause. It was first described in a 1981 publication, and its main signs are facial malformations, lack of bone mineralization, and musculoskeletal anomalies.[1]

Symptoms

According to a 2011 publication that summarizes the nine known cases, the leading symptoms are:

Aetiology and differential diagnosis

The clustering of the cases suggests an autosomal recessive disorder (see genetical dominance). In the aminopterin-syndrome sine aminopterin syndrome (ASSAS), a poorly mineralized calvarium is present, too, but many other tell-tale symptoms of Crane–Heise are lacking. A similar disease is cleidocranial dysplasia, but this is an autosomal dominant disease caused by mutations in the RUNX2 gene – and such mutations have not been found in Crane–Heise cases. Chromosomal abnormalities are also absent in the Crane–Heise syndrome.[2]

Diagnosis

As the cause is still unknown, the only diagnostic is ultrasound, which can detect a lack of skull mineralization by the 10th week of pregnancy.[2]

References

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