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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]
A skin condition, also known as cutaneous condition, is any medical condition that affects the integumentary system —the organ system that encloses the body and includes skin, nails, and related muscle and glands. [ 1] The major function of this system is as a barrier against the external environment.
Cutaneous conditions. This category reflects the organization of International Statistical Classification of Diseases and Related Health Problems, 10th Revision. Generally, diseases outlined within the ICD-10 codes L00–L99 within Chapter XII: Diseases of the skin and subcutaneous tissue should be included in this category.
Yaws. Yaws is a tropical infection of the skin, bones, and joints caused by the spirochete bacterium Treponema pallidum pertenue. [6] [7] The disease begins with a round, hard swelling of the skin, 2 to 5 cm (0.79 to 1.97 in) in diameter. [6] The center may break open and form an ulcer. [6] This initial skin lesion typically heals after 3–6 ...
An autoimmune disease is a condition that results from an anomalous response of the adaptive immune system, wherein it mistakenly targets and attacks healthy, functioning parts of the body as if they were foreign organisms. [ 1] It is estimated that there are more than 80 recognized autoimmune diseases, with recent scientific evidence ...
Specialty. Dermatology. Erythema ab igne ( Latin for 'redness from fire') EAI, also known as hot water bottle rash, [ 2] is a skin condition caused by long-term exposure to heat ( infrared radiation ). [ 3] Prolonged thermal radiation exposure to the skin can lead to the development of reticulated erythema, hyperpigmentation, scaling, and ...
Cutaneous actinomycosis is a chronic disease that affects the deep subcutaneous tissue of the skin. Caused by an anaerobic , Gram-positive, filamentous type of bacteria in the genus Actinomyces , [1] : 270 invasion of the soft tissue leads to the formation of abnormal channels leading to the skin surface (external sinus tracts) that discharge ...
Migrating conditions of or affecting the human integumentary system. Condition. Maximum rate of migration. Cutaneous larva migrans. 2 cm/day. Larva migrans profundus (Gnathostomiasis) 24 cm/day. Larva currens.