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・ Anophiodes concentratus
・ Anophiodes indistinctus
・ Anophiodes meeki
・ Anophiodes pulchrilinea
・ Anophthalmia
・ Anophthalmolabis
・ Anophthalmus
・ Anophthalmus hitleri
・ Anophthalmus schmidti
・ Anopina
・ Anonin
・ Anonplus
・ Anonthobium
・ Anontsibe Centre
・ Anontune
Anonychia
・ Anonychia (moth)
・ Anonychomyrma
・ Anonychomyrma anguliceps
・ Anonychomyrma angusta
・ Anonychomyrma arcadia
・ Anonychomyrma biconvexa
・ Anonychomyrma dimorpha
・ Anonychomyrma extensa
・ Anonychomyrma fornicata
・ Anonychomyrma froggatti
・ Anonychomyrma gigantea
・ Anonychomyrma gilberti
・ Anonychomyrma glabrata
・ Anonychomyrma incisa


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Anonychia : ウィキペディア英語版
Anonychia

Anonychia is the absence of nails, 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.〔James, William; Berger, Timothy; Elston, Dirk (2005). ''Andrews' Diseases of the Skin: Clinical Dermatology''. (10th ed.). Saunders. ISBN 0-7216-2921-0.〕
==Congenital form==

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).〔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〕 Clinically it is manifest by the absence (anonychia) or hypoplasia (hyponuchia) of finger- and/or toenails.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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