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Focal acral hyperkeratosis (also known as "Acrokeratoelastoidosis lichenoides,") is a late-onset keratoderma, inherited as an autosomal dominant condition, characterized by oval or polygonal crateriform papules developing along the border of the hands, feet, and wrists. [8]: 509
It is also typically characterized by the appearance of numerous papules. [3] Injuries can range from small to large plates composed of brown or pink, smooth or hyperkeratotic papules. [ 4 ] The most typical areas where injuries occur are the back of the feet, the toes, the legs, and the area around a venous ulcer formed in the extremities ...
Acral fibrokeratoma, also known as an acquired digital fibrokeratoma, and acquired periungual fibrokeratoma [1]: 668 is a skin lesion characterized by a pinkish, hyperkeratotic, hornlike projection occurring on a finger, toe, or palm. [2]: 609 [3]: 1817
Angiokeratoma of Fordyce (also known as "Angiokeratoma of the scrotum and vulva," though not to be confused with Fordyce's spots) [5] is a skin condition characterized by red to blue papules on the scrotum or vulva. Solitary angiokeratoma is a small, bluish-black, warty papule that occurs predominantly on the lower extremities. [5]: 590
Dermatofibromas [4] are hard solitary slow-growing papules (rounded bumps) that appear in a variety of colours, usually brownish to tan. They are often elevated or pedunculated . A dermatofibroma is associated with the dimple sign ; by applying lateral pressure, there is a central depression of the dermatofibroma.
Porokeratosis may be divided into the following clinical types: [1]: 532 Plaque-type porokeratosis (also known as "Classic porokeratosis" and "Porokeratosis of Mibelli" [2]) is characterized by skin lesions that start as small, brownish papules that slowly enlarge to form irregular, annular, hyperkeratotic or verrucous plaques.
The papules usually show up on the patient with an average age of 30 years. [ 1 ] [ 3 ] Kyrle disease is a rare disease unless there is a high count of patients with chronic kidney failure . The disease seems to be more prevalent in African Americans, which can be correlated to the high incidence of diabetes mellitus and kidney failure in the ...
A papule can be flesh colored, yellow, white, brown, black, blue or purplish, or varying shades of red. [4] [6] The intensity of redness might indicate how long the papule has been present. [6] There may be just one or many, and they may occur irregularly in different parts of the body or appear in clusters. [2] It may progress to a pustule or ...