| 翻訳と辞書 |
| melanonychia ： ウィキペディア英語版 |
melanonychia
Melanonychia is a black or brown pigmentation of the normal nail plate, and may be present as a normal finding on many digits in black patients, as a result of trauma, systemic disease, or medications, or as a postinflammatory event from such localized events as lichen planus or fixed drug eruption.〔James, William; Berger, Timothy; Elston, Dirk (2005). ''Andrews' Diseases of the Skin: Clinical Dermatology''. (10th ed.). Saunders. ISBN 0-7216-2921-0.〕〔Freedberg, et al. (2003). ''Fitzpatrick's Dermatology in General Medicine''. (6th ed.). McGraw-Hill. ISBN 0-07-138076-0.〕
There are two types, longitudinal and transverse melanonychia.〔 Longitudinal melanonychia may be a sign of subungual melanoma (Acral lentiginous melanoma),〔Baran, Robert, et al. 2008. ''Baran & Dawber's Diseases of the Nails and Their Management''. Oxford: Blackwell, p. 516.〕 although there are other diagnoses such as chronic paronychia, onychomycosis, subungual hematoma, pyogenic granuloma, glomus tumour, subungual verruca, mucous cyst, subungual fibroma, keratoacanthoma, carcinoma of the nail bed, and subungual exostosis.
== 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「melanonychia」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|