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]
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]
This cutaneous condition article is a stub. You can help Wikipedia by expanding it. |
Congenital malformations and deformations of skin appendages
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Nail disease |
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Hair disease |
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