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Melanonychia is a black or brown pigmentation of a nail, and may be present as a normal finding on many digits in Afro-Caribbeans, as a result of trauma, systemic disease, or medications, or as a postinflammatory event from such localized events as lichen planus or fixed drug eruption.
Melanonychia (longitudinal streaking that darkens or does not grow out), especially on the thumb or big toe, may indicate subungual melanoma. White lines across the nail (leukonychia striata, or transverse leukonychia) may be Mees' lines or Muehrcke's lines. Small white patches are known as leukonychia punctata.
Dermatologist Lindsey Zubritsky is “begging” her 1.4 million TikTok followers to check their nails for a vertical line, which could indicate a subungual melanoma, a rare, but serious skin cancer.
Melanonychia with pigmentation of the proximal nail fold. [3]: 671 This is an important sign of subungual melanoma although is not an infallible predictor. Periungual hyperpigmentation occurs in at least one nonmelanoma skin cancer, Bowen's disease of the nail unit.
Longitudinal melanonychia; Loose anagen syndrome (loose ... Melanoma is a malignant proliferation of melanocytes and the most aggressive type of skin cancer. [80 ...
In 2023, according to the Skin Cancer Foundation, 97,610 cases of invasive melanoma will be diagnosed in the United States; of those, 58,120 will be in men, and 39,490 in women. Of the 7,990 ...
Sunspots will never be black, however — melanoma can be. In fact, 95% of melanomas are dark, while sunspots will be darker than normal skin, but will stay within a lighter brown range.” Still ...
A skin condition, also known as cutaneous condition, is any medical condition that affects the integumentary system—the organ system that encloses the body and includes skin, nails, and related muscle and glands. [1]