20p13 Microdeletion Syndrome

1. Causes of the disease

20p13 microdeletion syndrome is a rare genetic disorder caused by a microdeletion of part of the short arm of chromosome 20 (20p13). This deletion results in the loss of multiple genes that may affect development and nervous system function, resulting in a variety of symptoms. It is often caused by a de novo mutation, but can also be inherited.

2. Symptoms

  • Developmental delays : Delays in the development of motor and language skills are common.
  • Intellectual disability : Mild to moderate intellectual disability may be present.
  • Behavioral abnormalities : Symptoms of autism spectrum disorder or attention deficit hyperactivity disorder (ADHD) may appear.
  • Physical characteristics : Some patients may have distinctive facial and physical features, but there is individual variation.
  • Heart and internal organ abnormalities : Some patients may have abnormalities of the heart or other internal organs.

3. Treatment

  • Developmental Support : Support development through speech, language, physical and occupational therapy.
  • Behavioral Therapy : Psychological and behavioral therapy can be used to treat behavioral problems.
  • Visceral management : Medical management of visceral abnormalities is provided as needed.

4. Prognosis

Although it varies depending on the severity of the symptoms, early and appropriate medical care and support can be expected to improve the quality of life. The quality of support and family involvement are important factors.

5. The burden on parents

Long-term medical support and rehabilitation are necessary, and families often bear a financial and psychological burden. It is important to establish a support system in cooperation with support groups and medical institutions.

医師監修 監修日:2024年11月15日
岡 博史 (医師・医学博士/ヒロクリニック統括院長)

日本皮膚科学会 皮膚科専門医/日本医師会 産業医/東京衛生検査所 指導監督医

この記事は、 ヒロクリニックNIPTの編集・監修体制 にもとづき、資格を持つ医師が内容を確認しています。

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