Ena Pasquale, Ena Luca, Ferrari Marco, Mazzarello Vittorio
Department of Surgical, Microsurgical and Medical Sciences, University of Sassari, Sassari, Italy.
Dermatology. 2015;231(4):298-303. doi: 10.1159/000437364. Epub 2015 Sep 2.
Ectopic nail (EN) is an extremely rare condition in which the small nail apparatus grows outside the normal nail unit of the hand and fingertips. Limited data can be found in the literature regarding ectopic nails of the foot and toes (EFN).
The study aimed at characterizing the clinical, therapeutic and dermoscopic EFN by a comparison with and differentiation from EN observed on the hands.
Data on EFN collected during 2004-2014 were analysed. A literature search was performed to evaluate articles for review points on the topic.
Characteristics of shape, development, ultrasound aspects, dermoscopy and the response to treatment of 22 EFN were reported. Results from our study were compared with cases reported in the literature.
In this article, new aspects on EFN from the clinical-morphological and dermoscopic points of view are reported; these may facilitate the diagnosis of an anomaly even without a histological examination.
异位甲（EN）是一种极为罕见的病症，即小指甲结构生长在手部和指尖的正常指甲单元之外。关于足部和脚趾异位甲（EFN）的文献资料有限。
本研究旨在通过与手部观察到的EN进行比较和鉴别，来描述EFN的临床、治疗和皮肤镜特征。
分析了2004年至2014年期间收集的EFN数据。进行文献检索以评估关于该主题的综述文章要点。
报告了22例EFN的形状、发育、超声表现、皮肤镜检查及治疗反应特征。将我们的研究结果与文献报道的病例进行了比较。
本文从临床形态学和皮肤镜角度报道了EFN的新情况；即使不进行组织学检查，这些情况也可能有助于异常的诊断。
