cardiofaciocutaneous syndrome (CFC syndrome)
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Pathology
- heart defects include
Genetics
- autosomal dominant
- associated with defects in MAP2K1 & MAP2K2 genes
- associated with defects in KRAS
- associated with defects in BRAF
Clinical manifestations
- distinctive facial appearance, heart defects & mental retardation
- some affected individuals present with ectodermal abnormalities such as
- sparse, friable hair
- hyperkeratotic skin lesions
- generalized ichthyosis-like condition
- typical facial features are similar to Noonan syndrome, including
- high forehead with bitemporal constriction
- hypoplastic supraorbital ridges
- downslanting palpebral fissures
- depressed nasal bridge
- posteriorly angulated ears with prominent helices