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Schamberg's disease, or progressive pigmented purpuric dermatosis, is a chronic discoloration of the skin which usually affects the legs and often spreads slowly. This disease is more common in males and may occur at any age from childhood onward. This condition is observed worldwide and has nothing to do with race or ethnic background.
Carotenosis is a benign and reversible medical condition where an excess of dietary carotenoids results in orange discoloration of the outermost skin layer. The discoloration is most easily observed in light-skinned people and may be mistaken for jaundice. [1][2]: 540 [3]: 681 Carotenoids are lipid-soluble compounds that include alpha- and beta ...
Causes. Autoimmune diseases, hyperlipidemia, poisons, drug abuse. Livedo reticularis is a common skin finding consisting of a mottled reticulated vascular pattern that appears as a lace-like purplish discoloration of the skin. [1] The discoloration is caused by reduction in blood flow (ischemia) through the arterioles that supply the cutaneous ...
Acrocyanosis. Acrocyanosis is persistent blue or cyanotic discoloration of the extremities, most commonly occurring in the hands, although it also occurs in the feet and distal parts of face. [1][2][3][4] Although described over 100 years ago and not uncommon in practice, the nature of this phenomenon is still uncertain. [5] The very term ...
Specialty. Medical genetics. A port-wine stain (nevus flammeus) is a discoloration of the human skin caused by a vascular anomaly (a capillary malformation in the skin). [ 1 ] They are so named for their coloration, which is similar in color to port wine, a fortified red wine from Portugal. A port-wine stain is a capillary malformation, seen at ...
Psoriasis is a long-lasting, noncontagious autoimmune disease characterized by patches of abnormal skin. [4][5] These areas are red, pink, or purple, dry, itchy, and scaly. [8][3] Psoriasis varies in severity from small localized patches to complete body coverage. [3] Injury to the skin can trigger psoriatic skin changes at that spot, which is ...
Dermatosis neglecta is a skin condition in which accumulation of sebum, keratin, sweat, dirt and debris leads to a localized patch of skin discoloration or a wart -like plaque. It is caused by inadequate hygiene of a certain body part, usually due to some form of disability or a condition that is associated with pain or increased sensitivity to ...
Specialty. Dermatology. Poikiloderma of Civatte[1] is a cutaneous condition and refers to reticulated red to red-brown skin patches with telangiectasias. [2] It is identifiable as a reddish-brown discoloration on the side of the neck, usually on both sides. It is more common in lighter-skinned individuals, in females rather than in males and ...