DNMT3A overgrowth syndrome
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Dados do National Institutes of Health
| DNMT3A overgrowth syndrome : DNMT3A overgrowth syndrome is a disorder characterized by faster than normal growth before and after birth, subtle differences in facial features, and intellectual disability. Individuals with DNMT3A overgrowth syndrome are often longer than normal at birth and are taller than their peers throughout life. Many affected individuals become overweight in late childhood or adolescence. They may also have an abnormally large head size (macrocephaly). The characteristic facial appearance of individuals with DNMT3A overgrowth syndrome includes a round face; thick, horizontal eyebrows; and narrowed openings of the eyes (narrowed palpebral fissures). Additionally, the upper front teeth are often larger than normal. Intellectual disability in DNMT3A overgrowth syndrome ranges from mild to severe. Individuals may have features of autism spectrum disorder, which are characterized by impaired communication and socialization skills. Individuals with DNMT3A overgrowth syndrome may have other signs and symptoms, including a rounded upper back that also curves to the side (kyphoscoliosis), heart defects, flat feet (pes planus), weak muscle tone (hypotonia), or joints that are loose and very flexible (hypermobile joints). Psychological disorders such as depression, anxiety, or obsessive-compulsive disorder can also occur in this disorder. | |
| Review Date: 01/04/2019 | Updated By: |