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Schamberg's disease, (also known as "progressive pigmentary dermatosis of Schamberg", [1] "purpura pigmentosa progressiva" (PPP), [1] and "Schamberg's purpura" [1]) is a chronic discoloration of the skin found in people of all ages, usually only affecting the feet, legs or thighs or a combination. It may occur as a single event or subsequent ...
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.
"Hyperpigmentation just means darkening of the skin," says Dr. Dowling. "So basically, 'hyperpigmentation' is an umbrella term for lots of different conditions that cause hyperpigmentation ...
Reticulated, interlacing, hyperpigmented patches with a few, scattered, erythematous macules at junctions on the medial aspects of the lower legs. Different types of heat sources can cause this condition such as: Repeated application of hot water bottles, heating blankets, or heat pads to treat chronic pain—e.g., chronic back pain. [4]
What it looks like: Flea bites appear most often on the feet, ankles, and lower legs, per Cleveland Clinic. After a flea bites you, a small, discolored bump forms and a discolored ring or halo may ...
Postinflammatory hyperpigmentation (PIH) is a skin condition characterized by the darkening of the skin (hyperpigmentation) following an inflammatory injury, such as acne, dermatitis, infectious disease, or trauma. Less frequently, it may occur as a complication of a medical procedure performed on the skin. It is a common cause of skin ...
Hyperpigmentation can be caused by all sorts of things, including psoriasis, insect bites, and other injuries to the skin—and those with darker skin are often more prone to experiencing it.
This is usually observed in the face, hands, forearms, and lower legs. Healing is slow and leaves scarring. Though blisters are the most common skin manifestations of PCT, other skin manifestations include hyperpigmentation (similar to a tan) and hypertrichosis (mainly on the cheeks) also occur. PCT is a chronic condition, with external ...