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Miliaria, commonly known as heat rash, sweat rash, or prickly heat, [1] is a skin disease marked by small, itchy rashes due to sweat trapped under the skin by clogged sweat-gland ducts. Miliaria is a common ailment in hot and humid conditions, such as in the tropics and during the summer. [ 2 ]
Pressure alopecia, also known as postoperative alopecia, and pressure-induced alopecia, [1] occurs in adults after prolonged pressure on the scalp during general anesthesia, with the head fixed in one position, and may also occur in chronically ill persons after prolonged bed rest in one position that causes persistent pressure on one part of the scalp, all likely due to pressure-induced ischemia.
It's unclear what causes erosive pustular dermatitis of the scalp. It is believed that actinic damage and epidermal atrophy are risk factors. Many other factors, such as different topical drugs, infections, surgical operations, or topical agents, have been linked to the beginning of the illness; their direct role in the etiology is unknown.
“Texas could very well be a breeding ground for miliaria,” Dr. Adam Mamelak, an Austin dermatologist, said in a post by Sanova Dermatology. “The high humidity mixed with sun exposure and ...
Alopecia mucinosa, also known as Follicular mucinosis, Mucinosis follicularis, Pinkus' follicular mucinosis, and Pinkus' follicular mucinosis–benign primary form, is a skin disorder that generally presents, but not exclusively, as erythematous plaques or flat patches without hair primarily on the scalp, neck and face.
Increased arteriolar blood flow, the vasodilatory capacitance phenomenon, and modifications to the optical characteristics of the nail plate overlaying the blood vessel, which accentuates the normal blood vessels, have all been proposed as possible causes of the red lunula.
The pathogenesis of pseudopelade of Brocq is still not well understood. A number of potential contributing variables include senescence of the follicular stem cell reserve, acquired autoimmunity, and Borrelia infection. [3]
Severe congenital onychogryphosis affecting all twenty nailbeds has been recorded in two families who exhibit the dominant allele for a certain gene. [6] [7]Congenital onychogryphosis of the fifth toe (the baby, little, pinky or small toe) is fairly common, but asymptomatic and seldom brought to the attention of medical professionals.