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Acanthosis nigricans is a medical sign characterised by brown-to-black, poorly defined, velvety hyperpigmentation of the skin. [1] It is usually found in body folds, [2] such as the posterior and lateral folds of the neck, the armpits, groin, navel, forehead and other areas.
Dermatosis papulosa nigra (DPN) is a condition of many small, benign skin lesions on the face, a condition generally presenting on dark-skinned individuals. [1]: 638–9 DPN is extremely common, affecting up to 30% of Black people in the US. [2] From a histological perspective, DPN resembles seborrheic keratoses. [3]
Try an in-office treatment. Laser facials and chemical peels containing alpha hydroxy acids are the two main options for in-office treatments. "Nd:YAG lasers and Pico lasers have demonstrated ...
Postinflammatory hyperpigmentation develops after the original symptoms of an inflammatory skin condition disappear. Common triggers include acne lesions, cuts, burns, or skin conditions like eczema. [1] Additionally, UV sun exposure and sunburn are involved in the development, darkening, and expansion of hyperpigmented skin lesions. [2]
If the skin of your neck is starting to show the signs of aging (wrinkles, sagging, discoloration), these nonsurgical tips recommended by dermatologists can help.
Then, use a skin soothing treatment like calamine lotion to combat the irritation, per the Cleveland Clinic. OTC anti-itch creams or ointments, along with antihistamines can relieve itchy skin and ...
It is a common skin problem that causes dark discolored patchy hyperpigmentation. It typically occurs on the face and is symmetrical, with matching marks on both sides of the face. The condition is much more common in women than men, though men can get it too.
Schamberg's disease is a skin disorder that causes a discoloration of the lower extremities. [4] It usually occurs in the lower extremities and rarely elsewhere. [4] This condition is caused by leaky blood vessels near the surface of the skin. [7] The cause of the leaky capillaries is usually not known. [7]