Abstract
Plain Language SummaryOnychoscopy (nail dermoscopy) is a noninvasive method used in diagnosing of nail disorders. In this review, we evaluated if onychoscopy may be helpful in diagnosing inflammatory nail disorders such as psoriasis, lichen planus, and lichen striatus. Nail psoriasis can be characterized with the presence of pitting, salmon patches, splinter hemorrhages, onycholysis with or without erythematous border and dilated vessels in the hyponychium on onychoscopy. Onychoscopy of nail lichen planus shows the presence of longitudinal ridging and splitting (onychorrhexis), splinter hemorrhages, longitudinal melanonychia as well as red lunula (distal part of nail matrix). The data on onychoscopy in nail lichen striatus are scarce. Onychoscopy is a helpful tool in visualization of nail abnormalities, with most of the features better visualized with onychoscopy compared to the naked eye.
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