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Disease Profile

Hemihypertrophy

Prevalence
Prevalence estimates on Rare Medical Network websites are calculated based on data available from numerous sources, including US and European government statistics, the NIH, Orphanet, and published epidemiologic studies. Rare disease population data is recognized to be highly variable, and based on a wide variety of source data and methodologies, so the prevalence data on this site should be assumed to be estimated and cannot be considered to be absolutely correct.

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US Estimated

Europe Estimated

Age of onset

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ICD-10

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Inheritance

Autosomal dominant A pathogenic variant in only one gene copy in each cell is sufficient to cause an autosomal dominant disease.

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Autosomal recessive Pathogenic variants in both copies of each gene of the chromosome are needed to cause an autosomal recessive disease and observe the mutant phenotype.

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X-linked
dominant X-linked dominant inheritance, sometimes referred to as X-linked dominance, is a mode of genetic inheritance by which a dominant gene is carried on the X chromosome.

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X-linked
recessive Pathogenic variants in both copies of a gene on the X chromosome cause an X-linked recessive disorder.

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Mitochondrial or multigenic Mitochondrial genetic disorders can be caused by changes (mutations) in either the mitochondrial DNA or nuclear DNA that lead to dysfunction of the mitochondria and inadequate production of energy.

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Multigenic or multifactor Inheritance involving many factors, of which at least one is genetic but none is of overwhelming importance, as in the causation of a disease by multiple genetic and environmental factors.

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Not applicable

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Other names (AKA)

Hemihyperplasia

Summary

Hemihypertrophy is a condition in which there is excessive (hyper) growth (trophy) of only one side (hemi) of the body, the right side or the left side. Overgrowth may affect only one part of the body, such as a leg or arm, or several different areas of the body. It may not be apparent at birth, but becomes most noticeable as the child grows. Hemihypertrophy can be isolated or may be part of a genetic syndrome, like Beckwith-Wiedemann syndrome.[1] In most cases, the cause of isolated hemihypertrophy is unknown. In cases where the condition is part of a genetic syndrome, the cause depends on the specific syndrome.[1][2] Treatment may include surgery to correct the differences in the affected body part(s).[2]

References

  1. Hemihyperplasia. Children's Hospital of Philadelphia. 3/2014; https://www.chop.edu/conditions-diseases/hemihyperplasia.
  2. Shuman C, Beckwith JB, Smith AC & Weksberg R. Beckwith-Wiedemann Syndrome. GeneReviews. 2016; https://www.ncbi.nlm.nih.gov/books/NBK1394/.