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Keratosis pilaris (KP; also follicular keratosis, lichen pilaris, or colloquially chicken skin. [ 1 ] ) is a common, autosomal - dominant , genetic condition of the skin's hair follicles characterized by the appearance of possibly itchy , small, gooseflesh -like bumps, with varying degrees of reddening or inflammation. [ 2 ]
Alkaptonuria is a rare inherited genetic disease which is caused by a mutation in the HGD gene for the enzyme homogentisate 1,2-dioxygenase (EC 1.13.11.5); if a person inherits an abnormal copy from both parents (it is a recessive condition), the body accumulates an intermediate substance called homogentisic acid in the blood and tissues.
The skin weighs an average of four kilograms, covers an area of two square metres, and is made of three distinct layers: the epidermis, dermis, and subcutaneous tissue. [1] The two main types of human skin are: glabrous skin, the hairless skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. [3]
What it looks like: Purplish lesions on the inner arms, legs, wrists, or ankles can signify lichen planus, a skin rash triggered by an overreaction of the immune system.
The distribution: e.g., the rash of scarlet fever becomes confluent and forms bright red lines in the skin creases of the neck, armpits and groins (Pastia's lines); the vesicles of chicken pox seem to follow the hollows of the body (they are more prominent along the depression of the spine on the back and in the hollows of both shoulder blades ...
Skin: The pigment is deposited throughout the skin, but only becomes apparent in certain locations, where the concentration is great enough to be seen clinically. This usually occurs in areas where connective tissue is thick (joints, tympanic membrane ) or close to the surface of the skin (thenar and hypothenar eminences and the sides of the ...
For years, a man from Bangladesh lived with "tree man" syndrome.. Abul Bajandar's hands and feet grew foot-long "roots" that left him unable to feed himself, move around, work or wear normal clothing.
Manhattan-based dermatologist Dr. Brendan Camp, M.D., said that toasted skin syndrome, officially known as erythema ab igne (EAI), is a "pattern of discoloration that occurs in areas of skin after ...