2q37 monosomy

A genetic disorder caused by deletion of part of chromosome 2

2q37 monosomy is a rare genetic disorder characterized by the deletion of a segment of the long arm (q arm) of chromosome 2. This condition can lead to a variety of developmental and physical abnormalities.

Genetics

2q37 monosomy is caused by a deletion of genetic material on the distal end of the q arm of chromosome 2. The size of the deletion can vary among affected individuals, which can influence the severity and range of symptoms. The deletion typically occurs de novo, meaning it is not inherited from a parent, but can also be inherited in some cases.

Clinical Features

Individuals with 2q37 monosomy may present with a range of clinical features, including:

• Developmental delay and intellectual disability
• Distinctive facial features such as a prominent forehead, deep-set eyes, and a small chin
• Short stature
• Brachydactyly (short fingers and toes)
• Hypotonia (reduced muscle tone)
• Behavioral problems, including autism spectrum disorder

Diagnosis

Diagnosis of 2q37 monosomy is typically made through genetic testing, such as chromosomal microarray analysis or karyotyping, which can identify the deletion on chromosome 2. Prenatal diagnosis is possible if there is a known risk, such as a family history of the condition.

Management

There is no cure for 2q37 monosomy, and treatment is symptomatic and supportive. Management may include:

• Early intervention programs and special education to address developmental delays
• Physical therapy to improve muscle tone and motor skills
• Behavioral therapy to manage behavioral issues
• Regular monitoring and treatment of any associated medical conditions

Prognosis

The prognosis for individuals with 2q37 monosomy varies depending on the size of the deletion and the severity of symptoms. With appropriate support and interventions, many individuals can lead fulfilling lives.

Related pages

• Chromosome 2
• Genetic disorder
• Chromosomal deletion
• Intellectual disability

Gallery

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  Diagram of chromosome 2 showing the location of the 2q37 deletion.