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Congenital disorder of glycosylation type Ia (CDG-Ia) is an inherited condition that affects many parts of the body. The type and severity of problems associated with CDG-Ia vary widely among affected individuals, sometimes even among members of the same family. Signs and symptoms are typically evident in infancy and can include hypotonia, inverted nipples, an abnormal distribution of fat, strabismus, developmental delay, failure to thrive, seizures, and distinctive facial features. About 20 percent of affected infants do not survive the first year of life due to multiple organ failure. The most severe cases of CDG-Ia are characterized by hydrops fetalis. This condition is caused by mutations in the PMM2 gene and is inherited in an autosomal recessive fashion.
Source: GARD Last updated on 05-01-20
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