Psoriasis Illustrations

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 What is Psoriasis?

The team have created medical illustrations of Psoriasis which is an autoimmune disease of the skin. It occurs when the immune system sends out faulty signals that speed up the growth cycle of skin cells. The skin usually sheds old cells replacing them with new in a cycle that takes about 28 days. In psoriasis, the whole process occurs at a much higher rate, about 3 to 6 days. With areas affected in this manner, the cells of the skin do not have time to mature and forms thick patches called plaques. The build-up of white blood cells produced by the body also accumulates, causing the itching and inflammation.

 Interesting Anatomical Facts of Psoriasis of the Skin

Plaque psoriasis – the most common form, depicted in the medical illustrations below, is commonly seen as red and white hues of scaly patches on the top of the epidermis. At its most severe it is characterised by well-demarcated red patches with white thick scales and cracks in the skin. It’s itchy, tight and produces dandruff like appearance as flakes disintegrate in the hair.

Guttate psoriasis – Tending to appear in younger adults guttate psoriasis appears as small circular red patches of skin that are inflamed and can appear randomly over the whole body. Up to 10% of people with psoriasis have this type however it’s not as common as plaque psoriasis.

Pustular Psoriasis – Pustular psoriasis can be triggered by medicines, irritation to the skin, pregnancy, emotional stress and ultraviolet light overdoses. This is a rarer condition in which pustules can develop anywhere over the body. It is a severe condition and the blisters are non-infectious but filled with pus, surrounded by red skin. These spots show that the skin has been invaded by white blood cells however it is not contagious in any way.

Flexural psoriasis – Affecting just the folds of the skin, such as under the arms or groin, the moist nature of the skin folds makes the appearance of this form of psoriasis slightly different. It tends not to have a silvery scale and appears as smooth bright red patches with shiny skin.