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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 ...
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 through the arterioles that supply the cutaneous capillaries, resulting in deoxygenated blood showing as blue discoloration ().
Although there is no definitive reporting on its incidence, acrocyanosis shows prevalence in children and young adults than in patients thirty years of age or older. [3] Epidemiological data suggests that cold climate, outdoor occupation, and low body mass index are significant risk factors for developing acrocyanosis. [ 10 ]
Lipedema is a condition that is almost exclusively found in women [3] and results in enlargement of both legs due to deposits of fat under the skin. [2] Women of any weight may be affected [2] [3] and the fat is resistant to traditional weight-loss methods. [4]
They are typically irregular, well defined and frequently appear on the arms, legs, and faces of older people. [1] It occurs in up to 80% of people over 70 years old. [2] Females may notice it at a younger age than males. [3]
It occurs in the lower legs, and is caused by excessive walking in hot temperatures. It is more common in elderly people. It is called golfer's vasculitis due to the walking involved in playing golf – a sport commonly practiced by older people. Disney rash became a name because the rash is common among visitors walking at Disney theme parks.
Morphea is an uncommon condition that is thought to affect 2 to 4 in 100,000 people. [18] Adequate studies on the incidence and prevalence have not been performed. Morphea also may be under-reported, as physicians may be unaware of this disorder, and smaller morphea plaques may be less often referred to a dermatologist or rheumatologist.
It was first seen in 1912, when a patient who used phenol on a leg ulcer was found by Beddard and Plumtre to have this condition. [3] Hydroquinone-induced exogenous ochronosis was found in 1975 by Findlay, who observed the condition in patients who used skin lightening creams containing the compound.