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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.
Pigmented purpuric dermatosis refers to one of the three major classes of skin conditions characterized by purpuric skin eruptions.. Pigmented purpuric dermatosis are distinguished from other purpura by size (0.3–1 cm) and are most often seen in the lower extremities.
Retinol increases cell turnover, which can lighten pigmentation. "For melasma, retinol can be used as a stand-alone topical and is also commonly prescribed as a combination cream," says Dr. Charles.
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 ...
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]