7q11.23 duplication syndrome

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7q11.23 duplication syndrome
Synonyms	Duplication 7q11.23 syndrome, Williams-Beuren region duplication syndrome
Pronounce	N/A
Specialty	N/A
Symptoms	Developmental delay, speech delay, intellectual disability, autism spectrum disorder, anxiety, ADHD
Complications	N/A
Onset	Infancy
Duration	Lifelong
Types	N/A
Causes	Genetic mutation
Risks	Family history of the condition
Diagnosis	Genetic testing, chromosomal microarray analysis
Differential diagnosis	Williams syndrome, other chromosomal duplication syndromes
Prevention	N/A
Treatment	Speech therapy, occupational therapy, behavioral therapy, special education
Medication	N/A
Prognosis	Variable, depends on severity of symptoms
Frequency	Rare
Deaths	N/A

7q11.23 duplication syndrome is a chromosome abnormality characterized by a variety of neurological and behavioral differences. It is caused by a small amount of additional (duplicated) Genetic materiall from chromosome 7. It is also known as Williams-Beuren region duplication syndrome, WBS duplication syndrome, Chromosome 7q11.23 duplication syndrome, Somerville-Van Der AA syndrome, Dup(7)(q11.23), Trisomy 7q11.23, and 7q11.23 microduplication syndrome.

Signs and symptoms

Symptoms may include: motor, speech and language delay, behavior problems, intellectual disability, low muscle tone (hypotonia), an increased head circumference (macrocephaly), facial dysmorphism, seizures, brain abnormalities, and heart defects such as enlargement of the blood vessel that carries blood from the heart to the rest of the body (aortic dilatation).

Cause

7q11.23 duplication syndrome is caused by a duplication of genetic material on the long (q) arm of chromosome 7.

Inheritance

Some cases of 7q11.23 duplication syndrome are inherited in an autosomal dominant manner; however, the majority of affected individuals have a new (de novo) duplication.

Treatment

While there is no cure for 7q11.23 duplication, treatment options will depend on the type and severity of symptoms present and may involve several specialists. Intensive speech/language therapy was found to be important for maximizing long-term outcomes. Latest articles - 7q11.23 duplication syndrome

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7q11.23 duplication syndrome on Wikipedia

• Wikipedia's article on 7q11.23 duplication syndrome