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Pascual-Castroviejo syndrome type 1
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Pascual-Castroviejo syndrome type 1

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Pascual-Castroviejo syndrome type 1
Other names Cerebrofaciothoracic dysplasia
Autosomal recessive - en.svg
Autosomal recessive pattern is the inheritance manner of this condition.
Causes Mutations in the TMCO1 gene

Pascual-Castroviejo syndrome type 1 is a rare autosomal recessive condition characterized by facial dysmorphism, cognitive impairment and skeletal anomalies.

Signs and symptoms

These can be divided into four areas

Genetics

This disease is caused by mutations in the transmembrane and coiled-coil domain-containing protein 1 (TMCO1) on the long arm of chromosome 1.

Diagnosis

The diagnosis may be provisionally made on clinical grounds. Further diagnostic tests include serum and urine analysis for lactic acid, a chest X-ray (or cardiac CT or MRI) and echocardiography. Biopsies from cardiac and skeletal muscle will show the presence of lipid and glycogen. Testing for mitochondrial abnormalities including adenosine nucleotide transporter deficiency and decreases in the respiratory chain complexes I and IV can also be done.

Differential diagnosis

This condition forms part of the spectrum of TMCO1 defects. There may be some overlap in features.

Treatment

There is no known treatment for this condition. Surgery may be helpful in treating the cleft lip and palate.

Prognosis

All cases to date have been reported in children. Long term prognosis is not known.

Epidemiology

Pascual-Castroviejo syndrome type 1 is rare. About 20 cases have been reported worldwide.

History

This condition was first described in 1975.

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