Melanoníquia: importância da avaliação dermatoscópica e da observação da matriz / leito ungueal

Abstract

Resumo: Melanoníquia, do grego mélaina, negro, sombrio, resulta de uma deposição aumentada de melanina na lâmina ungueal originada a partir da matriz ungueal. Apresenta diversas causas, entre elas, o melanoma subungueal, por isso, seu diagnóstico etiológico torna-se essencial, devendo ser o mais precoce possível. Os autores apresentam dois pacientes com melanoníquias de natureza distinta e enfatizam o seu diagnóstico diferencial. Palavras-chave: Biópsia; Lentigo; Melanoma; Unha Abstract: Melanonychia, from the Greek mélaina, means black and is the result of an increased deposition of melanin on the nail plate, originating in the nail matrix. It may have different causes, including subungueal melanoma, making early etiologic diagnosis very important.

Consensus on melanonychia nail plate dermoscopy

“…A detailed literature search on nail dermoscopy, nail pigmentation and melanonychia including Medline, Embase, Cochrane and a hand search were carried out 1-10 . Based on the available literature, the Group decided to develop an informal consensus process at S1 level.…”

Dermatoscopic findings in the most frequent onychopathies: descriptive analysis of 500 cases

“…The dermatoscope is a non‐invasive, low‐cost, practical optical magnification device that enables the assessment of specific characteristics of the nails. Most studies in the literature involving dermatoscopic findings have emphasized melanonychia 7,8 …”