Skin cancer-Definition
Malignant tumors caused by uncontrolled growth of several types of cells of the epidermis, the top layer of the skin. Skin
tumors can take origin from keratinocytes (epithelial cells) or by
melanocytes (the cells that are responsible for producing melanin, which
gives rise to in aggregate). In the first case
are called basal cell carcinomas (a departure from the deepest layer of
the epidermis) or spinocellulari (for more superficial cells source). A malignant tumor of melanocytes is called melanoma.
Skin cancer-causes
The
main risk factor for the development of skin cancers, particularly with
regard to carcinomas, is chronic exposure to sunlight, specifically
ultraviolet rays. For this reason, the parts of
the body most affected are those most exposed to the Sun: the face,
ears, neck, scalp, shoulders, and back. For
melanomas, a predisposing factor is represented by the presence of
moles, especially if many (more than 50), large and irregular edges.
Skin cancer-symptoms
Multiple
basal cell carcinomas occur in the form of small nodules of pearly
appearance slowly increasing in size and are often hard to the touch. Carcinoma
spinocellulare initially appears as a small red and scaly area which
gradually enlarges and can take on the appearance of a wart. Both of these forms have a reduced tendency to spread into the body and are generally not dangerous. The
melanomas originate from within, which undergo changes visible to the
naked eye (swollen, loss of regularity of edges and shape, color change,
which may be black, brownish, reddish, bluish or even pearly whites). The Melanoma can grow rapidly and spread in the body through movement.
Skin Cancer-Diagnosis
Skin
tumors are diagnosed by a specialist dermatologist following
examination, conducted with the help of epiluminescence examinations,
namely the observation through a lens polarized light, the deeper layers
of the skin. Certain diagnosis and definition of the type of cancer require performing a biopsy.
Skin cancer-Cure
The main treatment of skin cancers is the surgical removal of the affected tissues. In
the case of multiple basal cell carcinomas or spinocellulari can be
used techniques of microsurgery, laser surgery or with liquid nitrogen. For melanoma, surgery is more extensive and also includes the removal of surrounding lymph nodes. In unresectable cases, chemotherapy is used. Are also in experimentation, with encouraging results, forms of immunotherapy and antitumor vaccination.
Skin cancers-alternative Cures
There
are herbal remedies can stimulate the immune system features, as well
as homeopathy, acupuncture and aromatherapy have been used for the
treatment of side effects. All these approaches are complementary and should be carried out under the supervision of your physician.
Skin cancer-Nutrition
Follow
a diet low in fat and rich in antioxidants (vitamins A, C and E,
Coenzyme Q10, beta-carotene, green tea and ginger) may reduce the risk
of skin cancers.
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