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Disease Profile

Piebaldism

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.

Unknown

Age of onset

Infancy

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ICD-10

E70.3

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.

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)

PBT

Categories

Congenital and Genetic Diseases; Eye diseases; Skin Diseases

Summary

Piebaldism is a rare inherited condition characterized by a white forelock (a patch of white hair directly above the forehead). The name piebaldism is derived from the words “pie” (from magpie, which is a black and white bird) and “bald” (from the bald eagle, the US national bird that has a white feathered head). Other features include a white patch on the central portion of the forehead; white eyebrow and eyelash hair; and white patches of skin on the face (particularly the chin), trunk and extremities (hands and feet are not usually affected). This condition is present at birth and usually remains unchanged throughout life. It is inherited in an autosomal dominant fashion and is caused by mutations in the KIT gene.[1]

Symptoms

This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.

Medical Terms Other Names
Learn More:
HPO ID
80%-99% of people have these symptoms
Piebaldism
0007544
White forelock
White part of hair above forehead
0002211
30%-79% of people have these symptoms
Hypopigmented skin patches
Patchy loss of skin color
0001053
Macule
Flat, discolored area of skin
0012733
White eyebrow
Pale eyebrow
0002226
White eyelashes
Blonde eyelashes
Pale eyelashes

[ more ]

0002227
5%-29% of people have these symptoms
Abnormality of calvarial morphology
Abnormality of the shape of cranium
Abnormally shaped skull

[ more ]

0002648
Aganglionic megacolon
Enlarged colon lacking nerve cells
0002251
Ataxia
0001251
Hearing impairment
Deafness
Hearing defect

[ more ]

0000365
Heterochromia iridis
Different colored eyes
0001100
Intellectual disability
Mental deficiency
Mental retardation
Mental retardation, nonspecific
Mental-retardation

[ more ]

0001249
Long philtrum
0000343
Microcephaly
Abnormally small skull
Decreased circumference of cranium
Decreased size of skull
Reduced head circumference
Small head circumference

[ more ]

0000252
Muscular hypotonia
Low or weak muscle tone
0001252
Neoplasm of the skin
Skin tumors
Tumor of the skin

[ more ]

0008069
Synophrys
Monobrow
Unibrow

[ more ]

0000664
Wide nasal bridge
Broad nasal bridge
Broad nasal root
Broadened nasal bridge
Increased breadth of bridge of nose
Increased breadth of nasal bridge
Increased width of bridge of nose
Increased width of nasal bridge
Nasal bridge broad
Wide bridge of nose
Widened nasal bridge

[ more ]

0000431
Percent of people who have these symptoms is not available through HPO
Abnormality of the ear
0000598
Absent pigmentation of the ventral chest
0007542
Autosomal dominant inheritance
0000006
Neoplasm
0002664
Partial albinism
Partial absent skin pigmentation
0007443

Learn more

These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.

Where to Start

  • DermNet NZ is an online resource about skin diseases developed by the New Zealand Dermatological Society Incorporated. DermNet NZ provides information about this condition.
  • Genetics Home Reference (GHR) contains information on Piebaldism. This website is maintained by the National Library of Medicine.

In-Depth Information

  • Medscape Reference provides information on this topic. You may need to register to view the medical textbook, but registration is free.
  • The Monarch Initiative brings together data about this condition from humans and other species to help physicians and biomedical researchers. Monarch’s tools are designed to make it easier to compare the signs and symptoms (phenotypes) of different diseases and discover common features. This initiative is a collaboration between several academic institutions across the world and is funded by the National Institutes of Health. Visit the website to explore the biology of this condition.
  • Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Piebaldism. Click on the link to view a sample search on this topic.

References

  1. Piebaldism. DermNet. https://www.dermnet.org.nz/colour/piebaldism.html. Accessed 4/4/2011.