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Pincer nails (also known as "Omega nails," and "Trumpet nails"〔) are a toenail disorder in which the lateral edges of the nail slowly approach one another, compressing the nailbed and underlying dermis. It occurs less often in the fingernails, and there usually are no symptoms. .〔James, William; Berger, Timothy; Elston, Dirk (2005). ''Andrews' Diseases of the Skin: Clinical Dermatology''. (10th ed.). Saunders. ISBN 0-7216-2921-0.〕 Hereditary pincer nails have been described although the genes or mutations causing the hereditary form seem to be unknown. ==See also== *Nail anatomy *List of cutaneous conditions 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pincer nails」の詳細全文を読む スポンサード リンク
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