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Virus-related cutaneous conditions caused by these obligate intracellular agents derive from both DNA and RNA viruses. [29] Some examples of viral skin infections include: Warts, benign proliferative skin lesions that are caused by human papilloma virus (HPV). [30] [31] Warts vary in shape, size, appearance, and location on the body where they ...
Cellulitis is usually, but not always, [9] caused by bacteria that enter and infect the tissue through breaks in the skin. Group A Streptococcus and Staphylococcus are the most common causes of the infection and may be found on the skin as normal biota in healthy individuals. [12]
Microorganisms play a role in noninfectious skin diseases such as atopic dermatitis, [34] rosacea, psoriasis, [35] and acne [36] Damaged skin can cause nonpathogenic bacteria to become pathogenic. [37] The diversity of species on the skin is related to later development of dermatitis. [38]
Skin conditions resulting from errors in metabolism are caused by enzymatic defects that lead to an accumulation or deficiency of various cellular components, including, but not limited to, amino acids, carbohydrates, and lipids. [16] Acute intermittent porphyria; Adrenoleukodystrophy (Schilder's disease) Alkaptonuria
Pathogenic bacteria are bacteria that can cause disease. [1] This article focuses on the bacteria that are pathogenic to humans. Most species of bacteria are harmless and many are beneficial but others can cause infectious diseases. The number of these pathogenic species in humans is estimated to be fewer than a hundred. [2]
Vibrio vulnificus can cause necrotizing fasciitis, a severe skin infection in which the flesh around an open wound dies, which is why it is described as “flesh-eating” bacteria. However ...
In short, melasma is a chronic skin condition that appears as darkened areas on the face due to an overproduction of melanin, says Gina Charles, MO, a family physician specializing in skincare. It ...
Erysipelas (/ ˌ ɛ r ə ˈ s ɪ p ə l ə s /) is a relatively common bacterial infection of the superficial layer of the skin (upper dermis), extending to the superficial lymphatic vessels within the skin, characterized by a raised, well-defined, tender, bright red rash, typically on the face or legs, but which can occur anywhere on the skin.