منابع مشابه
Melanonychia
Melanonychia, or melanin-derived brown-to-black nail pigmentation, is a diagnostic challenge for clinicians. The most serious disease of the nail unit, melanoma, primarily presents with melanonychia. However, melanonychia most often occurs as a result of benign etiologies such as nail matrix melanocytic activation, nail matrix melanocytic hyperplasia, and nail invasion by melanin-producing path...
متن کاملMelanonychia
Figure 1. Melanonychia of the small finger of the left hand with biopsy site from trephination. Biopsy was inconclusive , and more invasive biopsy was warranted. Figure 2. Complete nail plate removal for biopsy with insertion of sterile silicone sheeting in nail fold to prevent synechiae.
متن کاملMultiple-band melanonychia striata.
KEY LEARNING POINTS MS is defined as a single or multiple black/brown pigmentation bands arranged lengthwise along the nail unit. Physiological MS is more commonly seen in darker phototype individuals and is quite unusual in fair-skinned ethnic groups. MS is the result of increased melanin production by nail matrix melanocytes, which produces a visible pigmentation band in the nail plate. Disti...
متن کاملLongitudinal melanonychia.
To cite: Khan K, Mavanur AA. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2015213459 DESCRIPTION An otherwise healthy 13-year-old boy was noted to have a discolouration arising from the nail bed of the left thumb. The lesion exhibited brisk linear transformation since it was initially noticed 4 months prior. There was no family history of melanoma, and he was n...
متن کاملMelanonychia Julie Jefferson and Phoebe Rich
Melanonychia, or melanin-derived brown-to-black nail pigmentation, is a diagnostic challenge for clinicians. The most serious disease of the nail unit, melanoma, primarily presents with melanonychia. However, melanonychia most often occurs as a result of benign etiologies such as nail matrix melanocytic activation, nail matrix melanocytic hyperplasia, and nail invasion by melaninproducing patho...
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ژورنال
عنوان ژورنال: QJM: An International Journal of Medicine
سال: 2018
ISSN: 1460-2725,1460-2393
DOI: 10.1093/qjmed/hcy149