DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Erythrodermic psoriasis. Close-up of red lesions on the skin of an 85-year-old female patient with erythrodermic psoriasis. Psoriasis is an autoimmune disease characterised by patches of abnormal skin. There are five main types of psoriasis: plaque, guttate, inverse, pustular, and erythrodermic. Erythrodermic psoriasis occurs when the rash becomes very widespread.
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