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What is Monosomy 18 mosaicism?

What is Monosomy 18 mosaicism?

  • Monosomy 18 mosaicism: An extremely rare chromosomal disorder where only some of the body's cells have one copy of chromosome 18 instead of the normal two. The severity and type of symptoms varies depending on how many and which body cells are affected.

Monosomy 18 mosaicism is listed as a "rare disease" by the Office of Rare Diseases (ORD) of the National Institutes of Health (NIH). This means that Monosomy 18 mosaicism, or a subtype of Monosomy 18 mosaicism, affects less than 200,000 people in the US population.
Source - National Institutes of Health (NIH)

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

Monosomy 18 mosaicism: Introduction

Types of Monosomy 18 mosaicism:

Broader types of Monosomy 18 mosaicism:

How serious is Monosomy 18 mosaicism?

Prognosis of Monosomy 18 mosaicism: The prognosis varies depending on the type and severity of symptoms that develop. Prompt diagnosis and appropriate treatment can improve prognosis and quality of life.

What causes Monosomy 18 mosaicism?

Causes of Monosomy 18 mosaicism: see causes of Monosomy 18 mosaicism

What are the symptoms of Monosomy 18 mosaicism?

Symptoms of Monosomy 18 mosaicism: see symptoms of Monosomy 18 mosaicism

How is it treated?

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

Name and Aliases of Monosomy 18 mosaicism

Main name of condition: Monosomy 18 mosaicism

Other names or spellings for Monosomy 18 mosaicism:

Chromosome 18 mosaic monosomy
Source - Office of Rare Diseases (ORD) of the National Institutes of Health (NIH)


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