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Seborrheic psoriasis_0312 Slideshows
Seborrheic psoriasis is a chronic, hereditary, recurrent dermatosis, characterized by discrete red plaques covered with silvery scales. It results from overactive sebaceous glands in the skin.
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Guttate psoriasis_0312 Slideshow
Guttate psoriasis is a skin eruption characterized by small, drop-like, salmon-pink papules between one and 10 mm in diameter, usually with a fine scale. This variant primarily occurs on the trunk and the proximal extremities, but it may have a generalized distribution. It mostly affects children and young adults, often following a streptococcal throat infection, immunization or a physical or psychological trauma. The word "guttate" is derived from the Latin word "gutta," meaning drop.
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Pustular psoriasis_0312 Slideshow
Pustular psoriasis is characterized by clearly defined, raised pus-filled blisters, that cover large swatches of skin and is sometimes accompanied by fever, chills and severe itching. This form of psoriasis can be triggered by pregnancy and medications such as systemic steroids. Flares may also occur after discontinuing certain medications, such as strong topical steroid creams.
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Psoriasis rupioides_0312 Slideshows
Psoriasis rupioides is an extreme and rare variant of psoriasis characterized by concentric tiers of scales resembling an oyster shell, pictured here on the knees.
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Erythrodermic psoriasis_0312 Slideshow
Erythrodermic psoriasis causes inflammation, itching and a painful red rash that may peel and often covers the entire body. It can be caused by severe sunburn, another poorly controlled form of psoriasis, or withdrawal from systemic treatment. This photo shows the dorsum left foot with confluent erythematous plaques and scaling in a man on methotrexate and neotigason.
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Psoriatic arthritis_0312 Slideshow
Psoriatic arthritis is a type of arthritis of unknown etiology that often occurs in patients with psoriasis of the skin. This dorsum view of the hands of an adult man with psoriatic arthritis shows swollen fingers and distal joints, as well as pitting in some nails, characteristic of the disorder.
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Plaque psoriasis_0312 Slideshow
Chronic plaque psoriasis is a condition in which epithelial cells are over produced and form a well-defined site. The redness is often covered with silvery scales of skin. The cause of this type of psoriasis is unknown, but some inheritance factor has been reported, as has a connection with stress disorders. Treatment is normally by palliative creams based on coal tar, although some acute cases are treated with drugs.
