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The Fitzpatrick scale has been criticized for its Eurocentric bias and insufficient representation of global skin color diversity. [9] The scale originally was developed for classifying "white skin" in response to solar radiation, [2] and initially included only four categories focused on white skin, with "brown" and "black" skin types (V and VI) added as an afterthought.
The dimple sign or Fitzpatrick's sign is a dermatological sign in which lateral pressure on the skin produces a depression. [ 1 ] [ 2 ] It is associated with dermatofibroma . [ 3 ]
Thomas B. Fitzpatrick (December 19, 1919 – November 16, 2003) was an American dermatologist. He was Chairman of the Department of Dermatology at Harvard Medical School and Chief of the Massachusetts General Hospital Dermatology Service from 1959 to 1987. He has been described as "the father of modern academic dermatology" and as "the most ...
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Rook was the editor of the British Journal of Dermatology from 1968 to 1974 [2] a dermatologist at Addenbrooke's Hospital, Cambridge, and a medical historian. [3] An online version was introduced for the eighth edition in 2010. [4] The ninth edition in four volumes was published by Wiley in 2016. [5]
Dermatology is the branch of medicine dealing with the skin. [1] [2] It is a speciality with both medical and surgical aspects. [3] [4] [5] A dermatologist is a specialist medical doctor who manages diseases related to skin, hair, nails, and some cosmetic problems. [2] [6]
Computer vision researchers initially adopted the Fitzpatrick scale as a metric to evaluate how well a given collection of photos of people sampled the global population. [4] However, the Fitzpatrick scale was developed to predict the risk of skin cancer in lighter-skinned people, and did not initially include darker skin tones at all.
The histological picture involves thinner, weaker attachments of the skin lesion itself to the normal skin – resulting in easier dislodgement. The formation of new blisters upon slight pressure (direct Nikolsky) and shearing of the skin due to rubbing (indirect Nikolsky) is a sign of pemphigus vulgaris, albeit not a 100% reliable diagnosis. [ 8 ]