Skin Cancer

Tracking a rare and dangerous breast cancer

When you think of breast cancer, you probably picture a telltale lump. Gayathri Devi, PhD, dispels that image with a few photos: a person's chest with what looks like a rash, then a thermographic version of the image showing ...

Oct 24, 2017
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Five things everyone should know about breast cancer

In 2017, the American Cancer Society estimates more than 250,000 new cases of breast cancer will be diagnosed in the United States, with more than 40,000 deaths. But progress in treatment and early detection has led to improved ...

Oct 04, 2017
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Bringing natural killer cells to the tumor battlefield

Natural Killer (NK) cells, lymphocytes of the innate immune system with strong cytotoxic activity, play a major role in the immune response against tumors. However, tumor cells can circumvent this immune defense by establishing ...

Nov 08, 2017
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How to treat sunspots

Dear Mayo Clinic: How effective is laser resurfacing for removing sunspots? Are there creams or other products that work to treat sun-damaged skin?

Oct 03, 2017
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For cancer patients with HIV, immunotherapy appears safe

A new category of immunotherapies called checkpoint inhibitors that has been highly effective against many different cancers appears safe to use in patients with both advanced malignancies and HIV, a population excluded from ...

Nov 07, 2017
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Skin neoplasms (also known as "skin cancer") are skin growths with differing causes and varying degrees of malignancy. The three most common malignant skin cancers are basal cell cancer, squamous cell cancer, and melanoma, each of which is named after the type of skin cell from which it arises. Skin cancer generally develops in the epidermis (the outermost layer of skin), so a tumor can usually be seen. This means that it is often possible to detect skin cancers at an early stage. Unlike many other cancers, including those originating in the lung, pancreas, and stomach, only a small minority of those affected will actually die of the disease, though it can be disfiguring. Melanoma survival rates are poorer than for non-melanoma skin cancer, although when melanoma is diagnosed at an early stage, treatment is easier and more people survive.

Skin cancer is the most commonly diagnosed type of cancer. Melanoma and non-melanoma skin cancers combined are more common than lung, breast, colorectal, and prostate cancer. Melanoma is less common than both basal cell carcinoma and squamous cell carcinoma, but it is the most serious — for example, in the UK there were over 11,700 new cases of melanoma in 2008, and over 2,000 deaths. It is the second most common cancer in young adults aged 15–34 in the UK. Most cases are caused by over-exposure to UV rays from the sun or sunbeds. Non-melanoma skin cancers are the most common skin cancers. The majority of these are basal cell carcinomas. These are usually localized growths caused by excessive cumulative exposure to the sun and do not tend to spread.

This text uses material from Wikipedia licensed under CC BY-SA

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