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Radiation dermatitis (also known as radiodermatitis) is a skin disease associated with prolonged exposure to ionizing radiation. [3]: 131–2 Radiation dermatitis occurs to some degree in most patients receiving radiation therapy, with or without chemotherapy.
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In the following hours or weeks, initial symptoms may appear to improve, before the development of additional symptoms, after which either recovery or death follow. [ 1 ] ARS involves a total dose of greater than 0.7 Gy (70 rad ), that generally occurs from a source outside the body, delivered within a few minutes. [ 1 ]
Melanoma is the most dangerous type of skin cancer; it develops from the melanin-producing cells known as melanocytes. [1] It typically occurs in the skin, but may rarely occur in the mouth, intestines, or eye (uveal melanoma). [1] [2] In women, melanomas most commonly occur on the legs; while in men, on the back. [2]
Cutaneous squamous-cell carcinoma is the second-most common cancer of the skin (after basal-cell carcinoma, but more common than melanoma). It usually occurs in areas exposed to the sun. Sunlight exposure and immunosuppression are risk factors for SCC of the skin, with chronic sun exposure being the strongest environmental risk factor. [26]
Basal-cell carcinoma (BCC), also known as basal-cell cancer, basalioma [7] or rodent ulcer, [8] is the most common type of skin cancer. [2] It often appears as a painless raised area of skin, which may be shiny with small blood vessels running over it . [ 1 ]
Sculpture in a park with a theme of cancer survivorship. A cancer survivor is a person with cancer of any type who is still living. Whether a person becomes a survivor at the time of diagnosis or after completing treatment, whether people who are actively dying are considered survivors, and whether healthy friends and family members of the cancer patient are also considered survivors, varies ...
Symptoms include inflamed skin, diarrhea, dementia, and sores in the mouth. [1] Areas of the skin exposed to friction and radiation are typically affected first. [1] Over time affected skin may become darker, stiffen, peel, or bleed. [1] [3] There are two main types of pellagra, primary and secondary. [1]