Abellaneda C, Dalmau J, Gómez M, Navarra R, Martín-Urda MT

Language: Spanish
References: 15
Page: 247-254
PDF size: 539.84 Kb.

ABSTRACT

Longitudinal pigmentation of the nails are a common problem in daily dermatology practice as well as a diagnostic challenge. The differential diagnosis is wide ranging from subungual hematoma, fungal infections, to melanocytic lesions (lentigo, nevus, melanoma), among others.
The pigmentation of the nail plate may be secondary to injury of the nail matrix, which is the germinative tissue of the nail. Of all the injuries caused in the matrix, the nail melanoma is our main concern that, although uncommon, is presented approximately in 1% of cutaneous melanoma. Nail melanoma is also an aggressive and destructive tumor and its prognosis depends on the early diagnosis.
Dermatologists often doubt on the clinical diagnosis and management of nail pigmentations. In addition there are often avoid to take biopsies of the matrix because it is a painful process that can cause permanent nail dystrophy. Dermoscopy through the nail plate provides additional criteria to the clinic to facilitate the differential diagnosis of lesions.
The aim of this paper is to review the dermoscopic semiology to facilitate differential diagnosis and management of nail pigmentations..

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