Dermoscopy to prevent and early diagnosis of skin cancer.

The ultra-violet radiation (UVR), produced by sunlight, is essential for the preservation of warmth and life. However, due to the holes in the ozone layer, exposure to the sun can cause severe damage to the skin, including skin cancer.

This radiation is classified as acomplete carcinogen (an agent that promotes and develops tumors). It is subdivided into UVA, UVB and UVC, and the first two wave spectra are causing tumors, sunburn and skin aging. UVC radiation does not reach the earth. Variations in rates of UVR depend on the existence of clouds in the atmosphere, geographical location, season and time of day. Between 10 hours and 14 hours the radiation are more harmful to the skin, due to the higher amount of UVB and UVA.

A dermatologist Daniela Graff explains how to prevent skin cancer and which treatments should be performed to treat the disease. What is skin cancer? skin cancer is the abnormal and uncontrolled growth of cells that make up the skin. These cells are arranged to form layers and, depending on the affected layer, we have different types of cancer is a test to prevent the disease?  Yes there is. The dermoscopic examination is useful in the prevention and diagnosis of cancer pele.Evita removed unnecessary pints (surgery). In order to prevent the effects of solar radiation on a day-to-day is recommended to use sunscreens, clothing and hats. What is dermoscopy? This is a diagnostic tool used in the clinical evaluation of pigmented skin lesions, ie all signs of skin whose color ranges from light brown to black. Included in this group of moles or nevi, in its different forms (junctional, compound, intradermal, atypical, blue, Spitz, Reed), seborrheic keratosis and two types of skin cancer, basal cell carcinoma and melanoma. What importance of the examination? allows a better evaluation of the "spots" because it shows details that are not seen with the naked eye. The doctor will indicate which lesions should be removed and which lesions should be monitored. How the test is performed? It is time consuming? For carrying out the method, the Dermatoscope is used, which increases the lesion 10x. The examination is done in the whole body, is quick and painless Who should get tested?All persons, including children, 1 x per year of routine. Why should we be alert to the signs and spots? The number of spots in an existing person represents a risk factor for developing melanoma, a type of skin cancer concern. Certain spots, although benign, are difficult to be distinguished from melanoma, often needed to remove them, producing scars often traumatic.What types of skin cancer? The most common types are basal cell and squamous cell carcinomas and more dangerous called melanoma. How to characterizes each type? The basocelularé the most frequent type, representing 70% of cases. It is most common after age 40, in fair-skinned people. Its appearance is directly linked to cumulative sun exposure over the life The squamous cell is the second most common type of skin cancer, can spread through the lymph and cause metastasis (rapid multiplication of cells to other body sites). Other causes are prolonged exposure to the sun, especially without adequate protection, smoking, exposure to chemicals with arsenic and tar and changes in immunity. Melanoma is the most dangerous, with high potential to metastasize. Can lead to death if there is early diagnosis and treatment. It is more common in people with light skin and sensitive. Usually starts with a dark pint. Where there is a greater chance of developing cancer? Most cases of skin cancer occurs in areas of the body repeatedly exposed to the sun. These areas include the head, neck, face, upper third of the ear, hands, forearms, shoulders, back, chest and man's back and legs in women. The main symptoms of the disease? There are several different presentations of skin blemishes.The first form looks high and bright, translucent, red, brown, pink or multicolored. The second is a black or brown paint that changes its color, texture, becomes irregular edges and grows in size. The third form is a spot or sore that does not heal. Who can get skin cancer? Skin cancer can strike anyone, but it is common to two groups: those with very fair skin and those who are constantly exposed to the sun as farmers, sailors, fishermen, gardeners, construction workers.Skin cancer is contagious? Despite showing wounds in the skin, the disease is not contagious.Skin cancer is manifested immediately? Skin cancer is a cumulative disease. The consequences of excessive sun exposure appear after a few years. Hardly the type of cancer acometerá children, most cases are found in the elderly .. In children occurs in some diseases or genetic syndromes and hereditary The sunscreen protects skin from ultraviolet rays?Currently the filters have UVA and UVB protection. The effectiveness depends on the protection factor, the amount applied and frequency of reapplication Indoor tanning is detrimental to the skin?