MedlinePlus Genetics:
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Cardiofaciocutaneous syndrome is a disorder that affects many parts of the body, particularly the heart (cardio-), facial features (facio-), and the skin and hair (cutaneous). People with this condition also have delayed development and intellectual disability, usually ranging from moderate to severe.Heart defects occur in most people with cardiofaciocutaneous syndrome. The heart problems most commonly associated with this condition include malformations of one of the heart valves that impairs blood flow from the heart to the lungs (pulmonic stenosis), a hole between the two upper chambers of the heart (atrial septal defect), and a form of heart disease that enlarges and weakens the heart muscle (hypertrophic cardiomyopathy).Cardiofaciocutaneous syndrome is also characterized by distinctive facial features. These include a high forehead that narrows at the temples, a short nose, widely spaced eyes (ocular hypertelorism), outside corners of the eyes that point downward (down-slanting palpebral fissures), droopy eyelids (ptosis), a small chin, and low-set ears. Overall, the face is broad and long, and the facial features are sometimes described as "coarse."Skin abnormalities occur in almost everyone with cardiofaciocutaneous syndrome. Many affected people have dry, rough skin; dark-colored moles (nevi); wrinkled palms and soles; and a skin condition called keratosis pilaris, which causes small bumps to form on the arms, legs, and face. People with cardiofaciocutaneous syndrome also tend to have thin, dry, curly hair and sparse or absent eyelashes and eyebrows.Infants with cardiofaciocutaneous syndrome typically have weak muscle tone (hypotonia), feeding difficulties, and a failure to grow and gain weight at the normal rate (failure to thrive). Additional features of this disorder in children and adults can include an unusually large head (macrocephaly), short stature, problems with vision, and seizures.The signs and symptoms of cardiofaciocutaneous syndrome overlap significantly with those of two other genetic conditions, Costello syndrome and Noonan syndrome. The three conditions are distinguished by their genetic cause and specific patterns of signs and symptoms; however, it can be difficult to tell these conditions apart, particularly in infancy. Unlike Costello syndrome, which significantly increases a person's cancer risk, cancer does not appear to be a major feature of cardiofaciocutaneous syndrome.
MalaCards based summary:
Cardiofaciocutaneous Syndrome 1, also known as cardiofaciocutaneous syndrome, is related to cardiofaciocutaneous syndrome 4 and cardiofaciocutaneous syndrome 3. An important gene associated with Cardiofaciocutaneous Syndrome 1 is BRAF (B-Raf Proto-Oncogene, Serine/Threonine Kinase), and among its related pathways/superpathways are ERK Signaling and Apoptotic Pathways in Synovial Fibroblasts. The drug Zinc oxide has been mentioned in the context of this disorder. Affiliated tissues include heart, skin and bone marrow, and related phenotypes are intellectual disability and hypotonia
OMIM®:
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Cardiofaciocutaneous (CFC) syndrome is a multiple congenital anomaly disorder characterized by a distinctive facial appearance, heart defects, and mental retardation (summary by Niihori et al., 2006). The heart defects include pulmonic stenosis, atrial septal defect, and hypertrophic cardiomyopathy. Some patients have ectodermal abnormalities such as sparse and friable hair, hyperkeratotic skin lesions, and a generalized ichthyosis-like condition. Typical facial characteristics include high forehead with bitemporal constriction, hypoplastic supraorbital ridges, downslanting palpebral fissures, a depressed nasal bridge, and posteriorly angulated ears with prominent helices. Most cases occur sporadically, but autosomal dominant transmission has been rarely reported (Linden and Price, 2011).
Roberts et al. (2006) provided a detailed review of CFC syndrome, including a discussion of the phenotypic overlap of CFC syndrome with Noonan syndrome (NS1; 163950) and Costello syndrome (218040). (115150) (Updated 08-Dec-2022)
GARD:
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Cardiofaciocutaneous (CFC) syndrome is a disorder that affects many parts of the body, particularly the heart, face, skin, and hair. People with this condition also have developmental delay and intellectual disability, usually ranging from moderate to severe. The symptoms of CFC syndrome overlap significantly with those of two other conditions, Costello syndrome and Noonan syndrome. These syndromes belong to a group of related conditions called the RASopathies, which are distinguished by their genetic causes and specific pattern of features. It can sometimes be hard to tell these conditions apart in infancy. CFC syndrome is usually caused by a genetic change in the BRAF gene, but can also be due to a genetic change in the MAP2K1, MAP2K2 or KRAS gene. It is an autosomal dominant condition, but most cases are not inherited, due to a new genetic change that occursin the formation of the egg or sperm or shortly after fertilization.
UniProtKB/Swiss-Prot:
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A multiple congenital anomaly disorder characterized by a distinctive facial appearance, heart defects and intellectual disability. Heart defects include pulmonic stenosis, atrial septal defects and hypertrophic cardiomyopathy. Some affected individuals present with ectodermal abnormalities such as sparse, friable hair, hyperkeratotic skin lesions and a generalized ichthyosis-like condition. Typical facial features are similar to Noonan syndrome. They include high forehead with bitemporal constriction, hypoplastic supraorbital ridges, downslanting palpebral fissures, a depressed nasal bridge, and posteriorly angulated ears with prominent helices.
Disease Ontology
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Cardiofaciocutaneous syndrome 1:
A cardiofaciocutaneous syndrome that has material basis in heterozygous mutation in BRAF on chromosome 7q34.
Cardiofaciocutaneous syndrome:
A RASopathy characterized by unusually sparse, brittle, curly hair, macrocephaly, a prominent forehead and bi-temporal narrowing, intellectual disability, failure to thrive, congenital heart defects, short stature and skin abnormalities, and has material basis in mutation in the BRAF, MAP2K1, MAP2kK2 and KRAS genes.
Orphanet:
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A rare, multiple congenital anomalies syndrome characterized by craniofacial dysmorphology, congenital heart disease, dermatological abnormalities (most commonly hyperkeratotic skin and sparse, curly hair), neurological manifestations (hypotonia, seizures), failure to thrive and intellectual disability.
Wikipedia:
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Cardiofaciocutaneous (CFC) syndrome is an extremely rare genetic disorder, and is one of the... more...
Rare neurological diseases 
