Psoriasis: The Integumentary System

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Psoriasis is a disease of the integumentary system that results in a skin rash, and also sometimes the rash involves the joints and nails. The epithelial cells of the skin are hyperproliferative, and result in a thickening of the uppermost layer of skin called the epidermis. Psoriasis is chronic and so far, cannot be cured. Treatment options are available in the sense that the visual results, the lesions of the skin, can be treated but often times reoccur when the treatment is stopped. Because of of the neutrophils, dendritic cells, macrophages, other cells involved in the disease, we are led to a debate. Is psoriasis caused by the skin’s T cells, or just the skin? The first hypothesis was that psoriasis is a disorder of the epidermis due

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