The list of signs and symptoms mentioned in various sources for ALL-Down syndrome includes the 15 symptoms listed below:
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The physical signs of Down syndrome (especially hypotonia) as well as some dysmorphic facial features and heart defects may be apparent at birth. The degree of mental retardation may not become apparent until the infant grows older. People with Down syndrome typically have craniofacial anomalies, such as slanting, almond-shaped eyes with epicanthic folds; a flat face; a protruding tongue; a small mouth and chin; a single transverse palmar crease (simian crease); small white spots (Brushfield's spots) on the iris; strabismus; a small skull; a flat bridge across the nose; slow dental development, with abnormal or absent teeth; small ears; a short neck; and cataracts.
Other physical effects may include dry, sensitive skin with decreased elasticity; umbilical hernia; short stature; short extremities, with broad, flat, and squarish hands and feet; clinodactyly (small little finger that curves inward); a wide space between the first and second toe; and abnormal fingerprints and footprints. Hypotonic limb muscles impair reflex development, posture, coordination, and balance.
Congenital heart disease (septal defects or pulmonary or aortic stenosis), duodenal atresia, megacolon, and pelvic bone abnormalities are common. The incidence of leukemia and thyroid disorders (particularly hypothyroidism) may be increased. Frequent upper respiratory infections can be a serious problem. Genitalia may be poorly developed and puberty delayed. Females may menstruate and be fertile. Males are infertile with low serum testosterone levels; many have undescended testicles.
Patients with Down syndrome may have an IQ between 30 and 70; however, social performance is usually beyond that expected for mental age. The level of intellectual function depends greatly on the environment and the amount of early stimulation received in addition to the IQ.
Source: Professional Guide to Diseases (Eighth Edition), 2005
The physical signs of Down syndrome (especially hypotonia) as well as some dysmorphic facial features and heart defects may be apparent at birth. The degree of mental retardation may not become apparent until the infant grows older. People with Down syndrome typically have craniofacial anomalies, such as upslanting palpebral fissures, almond-shaped eyes with epicanthic folds; a flat face; a protruding tongue; a small mouth and chin; a single transverse palmar crease (simian crease); small white spots (Brushfield spots) on the iris; strabismus; a small skull; a flat bridge across the nose; slow dental development, with abnormal or absent teeth; small ears; a short neck; and cataracts.
Other physical effects may include dry, sensitive skin with decreased elasticity; umbilical hernia; short stature; short extremities, with broad, flat, squarish hands and feet; clinodactyly (finger that curves inward); a wide space between the first and second toe; and abnormal fingerprints and footprints. Hypotonic limb muscles impair reflex development, posture, coordination, and balance.
Congenital heart disease (septal defects or pulmonary or aortic stenosis), duodenal atresia, megacolon, and pelvic bone abnormalities are common. The incidence of leukemia and thyroid disorders may be increased. Frequent upper respiratory infections can be a serious problem. Genitalia may be poorly developed and puberty delayed. Females may menstruate and be fertile. Males are infertile with low serum testosterone levels; many have undescended testes.
Down syndrome patients may have an IQ between 30 and 70; however, social performance is usually beyond that expected for mental age. The level of intellectual function depends greatly on the environment and the amount of early stimulation received in addition to the IQ.
Source: Handbook of Diseases, 2003
These general reference articles may be of interest in relation to medical signs and symptoms of disease in general:
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The symptom information on this page attempts to provide a list of some possible signs and symptoms of ALL-Down syndrome. This signs and symptoms information for ALL-Down syndrome has been gathered from various sources, may not be fully accurate, and may not be the full list of ALL-Down syndrome signs or ALL-Down syndrome symptoms. Furthermore, signs and symptoms of ALL-Down syndrome may vary on an individual basis for each patient. Only your doctor can provide adequate diagnosis of any signs or symptoms and whether they are indeed ALL-Down syndrome symptoms.
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