Disease or Syndrome
Sotos' syndrome
Subclass of:
Congenital chromosomal disease;
Multiple congenital anomalies
Definitions related to sotos' syndrome:
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(sotos syndrome) An autosomal dominant overgrowth syndrome caused by mutation(s) of the NSD1 or the NFIX gene, encoding H3 lysine-36 and H4 lysine-20 specific histone-lysine N-methyltransferase, and nuclear factor 1 X-type, respectively. The condition is characterized by a disproportionately large and long head with a slightly prominent forehead and pointed chin, hypertelorism, down-slanting eyes, large hands and feet, overgrowth in childhood, and developmental delay.NCI ThesaurusU.S. National Cancer Institute, 2021
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(sotos syndrome) Congenital or postnatal overgrowth syndrome most often in height and occipitofrontal circumference with variable delayed motor and cognitive development. Other associated features include advanced bone age, seizures, NEONATAL JAUNDICE; HYPOTONIA; and SCOLIOSIS. It is also associated with increased risk of developing neoplasms in adulthood. Mutations in the NSD1 protein and its HAPLOINSUFFICIENCY are associated with the syndrome.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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Sotos syndrome is a disorder characterized by a distinctive facial appearance, overgrowth in childhood, and learning disabilities or delayed development of mental and movement abilities. Characteristic facial features include a long, narrow face; a high forehead; flushed (reddened) cheeks; and a small, pointed chin. In addition, the outside corners of the eyes may point downward (down-slanting palpebral fissures). This facial appearance is most notable in early childhood. Affected infants and children tend to grow quickly; they are significantly taller than their siblings and peers and have an unusually large head. However, adult height is usually in the normal range. People with Sotos syndrome often have intellectual disability, and most also have behavioral problems. Frequent behavioral issues include autism spectrum disorder, attention-deficit/hyperactivity disorder (ADHD), phobias, obsessions and compulsions, tantrums, and impulsive behaviors. Problems with speech and language are also common. Affected individuals often have a stutter, a monotone voice, and problems with sound production. Additionally, weak muscle tone (hypotonia) may delay other aspects of early development, particularly motor skills such as sitting and crawling. Other signs and symptoms of Sotos syndrome can include an abnormal side-to-side curvature of the spine (scoliosis), seizures, heart or kidney defects, hearing loss, and problems with vision. Some infants with this disorder experience...MedlinePlus GeneticsU.S. National Library of Medicine, 2021
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Sotos syndrome is a condition characterized mainly by distinctive facial features; overgrowth in childhood; and learning disabilities or delayed development. Facial features may include a long, narrow face; a high forehead; flushed (reddened) cheeks; a small, pointed chin; and down-slanting palpebral fissures. Affected infants and...National Center for Advancing Translational Sciences
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