Anonychia: Difference between revisions
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{{Short description|Medical condition}} |
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{{Infobox Disease |
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{{For |the moth genus |Anonychia (moth){{!}}''Anonychia'' (moth)}} |
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| name = Anonychia |
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| field = [[Dermatology]] |
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'''Anonychia''' is the failure to form [[Nail (anatomy)|fingernails or toenail]]s.<ref name=Burrow2020>{{cite book |last1=MacGilchrist |first1=Claire |editor1-last=Burrow |editor1-first=J. Gordon |editor2-last=Rome |editor2-first=Keith |editor3-last=Padhiar |editor3-first=Nat |title=Neale's Disorders of the Foot and Ankle |date=2020 |publisher=Elsevier |isbn=978-0-7020-6504-0 |page=52 |edition=9th |chapter-url=https://books.google.com/books?id=2KPsDwAAQBAJ&pg=PA52 |language=en |chapter=3. The skin and nails in podiatry }}</ref> |
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| ⚫ | It is an anomaly which may be the result of a congenital [[ectoderm]]al defect, [[ichthyosis]], severe infection, severe [[allergic contact dermatitis]], self-inflicted [[Injury|trauma]], [[Raynaud phenomenon]], [[lichen planus]], [[epidermolysis bullosa]], or severe exfoliative diseases.<ref name=Andrew2020>{{cite book |last1=James |first1=William D. |last2=Elston |first2=Dirk |last3=Treat |first3=James R. |last4=Rosenbach |first4=Misha A. |last5=Neuhaus |first5=Isaac |title=Andrews' Diseases of the Skin: Clinical Dermatology |date=2020 |publisher=Elsevier |location=Edinburgh |isbn=978-0-323-54753-6 |page=782 |edition=13th |chapter-url=https://books.google.com/books?id=UEaEDwAAQBAJ&pg=PA782 |language=en |chapter=33. Diseases of the skin appendages }}</ref> |
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==Cause== |
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This is rare and is usually due to mutations in the R-spondin 4 ([[RSPO4]]) gene which is located on the short arm of [[chromosome 20]] (20p13).<ref name=Khan2012>Khan TN, Klar J, Nawaz S, Jameel M, Tariq M, Malik NA, Baig SM, Dahl N (2012) Novel missense mutation in the RSPO4 gene in congenital hyponychia and evidence for a polymorphic initiation codon (p.M1I). BMC Med Genet 13(1):120</ref> |
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== See also == |
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* [[List of cutaneous conditions]] |
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==References== |
==References== |
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== External links == |
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{{skin-appendage-stub}} |
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{{Sister project links|auto=y|wikt=y}}{{Cutaneous-condition-stub}}{{Medical resources |
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| ICD10 = {{ICD10|L|60|8|l|60}}, {{ICD10|Q|84|3|q|80}} |
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| ICD9 = {{ICD9|703.8}}, {{ICD9|757.5}} |
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{{Disorders of skin appendages}} |
{{Disorders of skin appendages}} |
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{{Congenital malformations and deformations of skin appendages}} |
{{Congenital malformations and deformations of skin appendages}} |
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[[pl:Anonychia]] |
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[[Category:Nails (anatomy)]] |
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Latest revision as of 08:18, 13 April 2024
| Anonychia | |
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| Specialty | Dermatology |
Anonychia is the failure to form fingernails or toenails.[1]
It is an anomaly which may be the result of a congenital ectodermal defect, ichthyosis, severe infection, severe allergic contact dermatitis, self-inflicted trauma, Raynaud phenomenon, lichen planus, epidermolysis bullosa, or severe exfoliative diseases.[2]
Cause
[edit]This is rare and is usually due to mutations in the R-spondin 4 (RSPO4) gene which is located on the short arm of chromosome 20 (20p13).[3]
See also
[edit]References
[edit]- ^ MacGilchrist, Claire (2020). "3. The skin and nails in podiatry". In Burrow, J. Gordon; Rome, Keith; Padhiar, Nat (eds.). Neale's Disorders of the Foot and Ankle (9th ed.). Elsevier. p. 52. ISBN 978-0-7020-6504-0.
- ^ James, William D.; Elston, Dirk; Treat, James R.; Rosenbach, Misha A.; Neuhaus, Isaac (2020). "33. Diseases of the skin appendages". Andrews' Diseases of the Skin: Clinical Dermatology (13th ed.). Edinburgh: Elsevier. p. 782. ISBN 978-0-323-54753-6.
- ^ Khan TN, Klar J, Nawaz S, Jameel M, Tariq M, Malik NA, Baig SM, Dahl N (2012) Novel missense mutation in the RSPO4 gene in congenital hyponychia and evidence for a polymorphic initiation codon (p.M1I). BMC Med Genet 13(1):120
External links
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