甲病（趾甲、指甲）咬甲癖的甲床和甲皱襞的皮肤镜表现：36 例病例研究。

Dermoscopic features of onychotillomania: A study of 36 cases.

机构信息

Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida.

出版信息

J Am Acad Dermatol. 2018 Oct;79(4):702-705. doi: 10.1016/j.jaad.2018.04.015. Epub 2018 Apr 14.

DOI:10.1016/j.jaad.2018.04.015

PMID:29660424

Abstract

BACKGROUND

Onychotillomania is a nail-picking disorder characterized by nail dystrophy and abnormal morphology of the nail plate, nail bed, and periungual skin.

OBJECTIVE

The purpose of this study was to describe the dermoscopic features of onychotillomania.

METHODS

A retrospective study of the dermoscopy images of 36 patients affected by onychotillomania. The images were reviewed independently by both authors and a list of dermatoscopic findings was established.

RESULTS

Scales were observed in 34 cases (94.4%). Absence of the nail plate was seen in 30 cases (83.3%). Wavy lines were observed in 25 cases (69.4%). Hemorrhages were observed in 23 cases (63.9%). Crusts were seen in 22 cases (61.1%). Nail bed pigmentation was observed in 17 cases (47.2%). Speckled dots were observed in 14 cases (38.9%). Nail plate melanonychia was observed in 4 cases (11.1%).

LIMITATIONS

Limitations included small sample size and retrospective study.

CONCLUSION

Absence of the nail plate with multiple obliquely oriented nail bed hemorrhages, nail bed gray pigmentation, and presence of wavy lines are characteristic findings of onychotillomania and not seen in other nail diseases.

摘要

背景

拔甲癖是一种指甲抠挖障碍，其特征为指甲营养不良和甲板、甲床和甲周皮肤的异常形态。

目的

本研究旨在描述拔甲癖的皮肤镜特征。

方法

对 36 例拔甲癖患者的皮肤镜图像进行回顾性研究。两位作者分别独立对图像进行了审查，并建立了一系列皮肤镜表现。

结果

在 34 例（94.4%）中观察到鳞屑。30 例（83.3%）中未见甲板。25 例（69.4%）中观察到波浪线。23 例（63.9%）中观察到出血。22 例（61.1%）中观察到鳞屑。17 例（47.2%）中观察到甲床色素沉着。14 例（38.9%）中观察到斑点状点。4 例（11.1%）中观察到甲板黑素甲。