Disease or Syndrome
psoriasis
pso·ri·a·sis [ suh-rahy-uh-sis ]
Subclass of:
Skin Diseases, Papulosquamous
Etymology:
Greek psora = itch + -iasis = condition or disease
Definitions related to psoriasis:
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A chronic disease of the skin marked by red patches covered with white scales.NCI Dictionary of Cancer TermsU.S. National Cancer Institute, 2021
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A common genetically determined, chronic, inflammatory skin disease characterized by rounded erythematous, dry, scaling patches. The lesions have a predilection for nails, scalp, genitalia, extensor surfaces, and the lumbosacral region. Accelerated epidermopoiesis is considered to be the fundamental pathologic feature in psoriasis.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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A common skin disease characterized by thickened patches of inflamed red skin; sometimes accompanied by painful joint swelling and stiffness.Harvard Dictionary of Health TermsHarvard Medical Publishing, 2011
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An autoimmune condition characterized by red, well-delineated plaques with silvery scales that are usually on the extensor surfaces and scalp. They can occasionally present with these manifestations: pustules; erythema and scaling in intertriginous areas, and erythroderma, that are often distributed on extensor surfaces and scalp.NCI ThesaurusU.S. National Cancer Institute, 2021
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Common polygenetically determined, chronic, squamous dermatosis characterized by rounded erythematous, dry, scaling patches.CRISP ThesaurusNational Institutes of Health, 2006
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Psoriasis is a skin disease that causes itchy or sore patches of thick, red skin with silvery scales. You usually get the patches on your elbows, knees, scalp, back, face, palms and feet, but they can show up on other parts of your body. Some people who have psoriasis also get a form of arthritis called psoriatic arthritis. A problem with your immune system causes psoriasis. In a process called cell turnover, skin cells that grow deep in your skin rise to the surface. Normally, this takes a month. In psoriasis, it happens in just days because your cells rise too fast. Psoriasis can be hard to diagnose because it can look like other skin diseases. Your doctor might need to look at a small skin sample under a microscope. Psoriasis can last a long time, even a lifetime. Symptoms come and go. Things that make them worse include Infections; Stress; Dry skin; Certain medicines. Psoriasis usually occurs in adults. It sometimes runs in families. Treatments include creams, medicines, and light therapy. NIH: National Institute of Arthritis and Musculoskeletal and Skin DiseasesMedlinePlusU.S. National Library of Medicine, 2021
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Psoriasis is an inflammatory disease that manifests most commonly as well-circumscribed, erythematous papules and plaques covered with silvery scales. Multiple factors contribute, including genetics. Common triggers include trauma, infection, and certain drugs. Symptoms are usually minimal, but mild to severe itching may occur. Cosmetic...Merck & Co., Inc., 2020
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Psoriasis is a complex, chronic, multifactorial, inflammatory disease that involves hyperproliferation of the keratinocytes in the epidermis, with an increase in the epidermal cell turnover rate (see the image below). Environmental, genetic, and immunologic factors appear to play a role.WebMD, 2019
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Psoriasis is a skin disease that causes red, itchy scaly patches, most commonly on the knees, elbows, trunk and scalp.Mayo Foundation for Medical Education and Research
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Psoriasis is a skin disease that causes itchy or sore patches of thick, red skin with silvery scales. The skin on the elbows, knees, scalp, back, face, palms and feet is most often affected, but other parts of the body can be affected as well. A problem with the immune system causes psoriasis. In a process called cell turnover, skin...National Center for Advancing Translational Sciences
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Psoriasis, a chronic, recurrent inflammatory skin disorder. The most common type, called plaque psoriasis (psoriasis vulgaris), is characterized by slightly elevated reddish patches or papules (solid elevations) covered with silvery white scales. In most cases, the lesions tend to be symmetrically...Encyclopedia Britannica, Inc., 2020
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