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Periorbital hyperpigmentation, also known as hereditary dark circles, is characterized by darker skin around the eyes caused by the presence of additional melanin. It is an extremely common hereditary human characteristic and is frequently found on individuals with dark skin. Periorbital hyperpigmentation is most prevalent within the 16–25 ...
Periorbital dark circles; Other names: Dark circles, infraorbital venous stasis, periorbital hyperpigmentation: Minor dark circles and a hint of periorbital puffiness—a combination principally suggestive of minor sleep deprivation. Specialty: Sleep medicine
Hyperpigmentation can be diffuse or focal, affecting such areas as the face and the back of the hands. Melanin is produced by melanocytes at the lower layer of the epidermis . Melanin is a class of pigment responsible for producing color in the body in places such as the eyes, skin, and hair.
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Periorbital hyperpigmentation; Peutz–Jeghers syndrome; Photoleukomelanodermatitis of Kobori; Phylloid hypomelanosis; Piebaldism; Pigmentatio reticularis faciei et colli; Pityriasis alba; Poikiloderma; Poikiloderma of Civatte; Poikiloderma vasculare atrophicans; Postinflammatory hypermelanosis; Postinflammatory hyperpigmentation ...
Hyperpigmentation results from an increase in melanin synthesis, which is mostly brought on by sun exposure, dermatological disorders, hormones, aging, genetic factors, skin injuries or inflammation, and acne. Sun exposure, which greatly increases the synthesis of melanin, is the most common cause of hyperpigmentation.
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.
Periorbital hyperpigmentation; Periorbital puffiness; R. Raccoon eyes; T. Trochleitis This page was last edited on 22 March 2022, at 08:57 (UTC). Text is available ...