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What is Trisomy 18 mosaicism?

What is Trisomy 18 mosaicism?

  • Trisomy 18 mosaicism: A rare genetic chromosomal syndrome where the child has an extra third copy of chromosome 18 in only some of the body's cells. It is a less severe form of Edwards syndrome - the most severe form involves and extra copy of chromosome 18 in all of the body's cells. The severity of the condition is highly variable depending on how many of the body's cells are involved.

Ophanet, a consortium of European partners, currently defines a condition rare when it affects 1 person per 2,000. They list Trisomy 18 mosaicism as a "rare disease".
Source - Orphanet

Trisomy 18 mosaicism: Introduction

Types of Trisomy 18 mosaicism:

Broader types of Trisomy 18 mosaicism:

How serious is Trisomy 18 mosaicism?

Prognosis of Trisomy 18 mosaicism: The prognosis varies depending on the nature and severity of symptoms present in individual cases. Roughly half of the patients die during early infancy. Survival into the teens does occur but patients often have severe health problems.
Complications of Trisomy 18 mosaicism: see complications of Trisomy 18 mosaicism

What causes Trisomy 18 mosaicism?

Causes of Trisomy 18 mosaicism: see causes of Trisomy 18 mosaicism

What are the symptoms of Trisomy 18 mosaicism?

Symptoms of Trisomy 18 mosaicism: see symptoms of Trisomy 18 mosaicism

Complications of Trisomy 18 mosaicism: see complications of Trisomy 18 mosaicism

Trisomy 18 mosaicism: Testing

Diagnostic testing: see tests for Trisomy 18 mosaicism.

How is it treated?

Doctors and Medical Specialists for Trisomy 18 mosaicism: Medical Geneticist ; see also doctors and medical specialists for Trisomy 18 mosaicism.
Treatments for Trisomy 18 mosaicism: see treatments for Trisomy 18 mosaicism
Research for Trisomy 18 mosaicism: see research for Trisomy 18 mosaicism

Name of Trisomy 18 mosaicism

Main name of condition: Trisomy 18 mosaicism

 

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