R21

Introduction: R21

Description of R21

R21 (medical condition): A rare chromosomal disorder where genetic material from one or both ends of chromosome 21 is missing and the two broken ends have rejoined to form a ring. The resulting type and severity of symptoms is determined by the amount and location of genetic material missing.

See also:

Chromosome 21 Ring:
  »Introduction: Chromosome 21 Ring
  »Symptoms of Chromosome 21 Ring
  »Treatments for Chromosome 21 Ring

R21: Rare Disease

Office of Rare Diseases (ORD) of the National Institutes of Health (NIH)

R21 is listed as a "rare disease" by the Office of Rare Diseases (ORD) of the National Institutes of Health (NIH). This means that R21, or a subtype of R21, affects less than 200,000 people in the US population.
Source - National Institutes of Health (NIH)

R21 as a Disease

R21: Another name for Chromosome 21 Ring (or close medical condition association).
  »Introduction: Chromosome 21 Ring
  »Symptoms of Chromosome 21 Ring
  »Treatments for Chromosome 21 Ring

Symptoms of R21 (Chromosome 21 Ring)

Some of the symptoms of R21 incude:

• Mental retardation
• Facial abnormalities
• Eye abnormalities
• Skeletal abnormalities
• Internal organ abnormalities

See full list of 6 symptoms of R21 (Chromosome 21 Ring)

Treatments for R21 (Chromosome 21 Ring)

Treatments for R21 (Chromosome 21 Ring) include:

• Treatment varies considerable depending on the type and severity of symptom that develop
• Surgery may be needed to correct defects or abnormalities e.g. heart defects, skull and facial abnormalities
• Access to programs and services as required e.g. physical therapy, speech therapy, educational support, social, vocational and medical services
• Various other symptomatic and supportive measures
• Genetic counseling and joining a support group is recommended

Read more about treatments for R21

Treatment of R21: For more treatment information about R21, see treatment of Chromosome 21 Ring (R21)

R21: Related Disease Topics

These medical disease topics may be related to R21:

• mental retardation
• facial anomalies
• skeletal anomalies

Terms associated with R21:

Terms Similar to R21:

• Ring 21
• Ring 21, Chromosome
• Chromosome 21 ring

Source - NIH

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