Melanoma is one of the most malignant tumors, its development comes from congenital nevi. Melanoma is less than skin cancer and an average of about 1% in the structure of all malignant tumors. There are the following pigmented nevi: epidermal, intradermal and mixed.
The most dangerous border (intradermal) nevi, they represent a clear-cut flat a lump of black or brown color with a very smooth surface without hair. Is located on the neck, head, body, hands and feet. Trauma, hormonal changes, ultraviolet irradiation, all these factors contribute to the transformation of pigmented nevi (moles) in melanoma. Melanoma grows over skin, deep into the skin surface and grows through all layers of the skin and fabric and the deeper, the prognosis is worse. Rapidly and very early melanoma gives metastasis, mainly in the regional lymph nodes and skin.
For melanoma is characterized by three features: black or black-brown, smooth, shiny surface and the propensity to ulceration and disintegration. Patients complain about an increase in the pigment of education, bleeding, get wet, skin itch. A number of signs of rebirth in a mole or pigmented nevi: seal and the increasing size, the seal; increased pigmentation; bleeding or cracks; redness around moles, and the emergence of stinging, itching; swollen lymph nodes; hair loss with pigment spots or from the surface of moles.
Mole (nevus) is a congenital disorder of the skin, characterized by the appearance of the skin, the mucous membranes of the tumors, the various spots. All moles (convex, flat) dangerous equally, there is a high likelihood of degeneration in melanoma (skin cancer). The main signs of degeneration of moles: seal and increase in size, uneven pigmentation and sudden darkening of color to black bleeding, cracks, the appearance of ulcers: redness around the moles (nevus). The reasons for the degeneration of moles and development of Oncology: excessive exposure to the sun or ultraviolet radiation in high doses; trauma moles (nevus).
Treatment is carried out in a specialized clinic. The main treatment is surgical removal (resection) of the tumor, less frequently combined treatment. As a rule, surgeons Oncology conduct wide excision of melanoma. Mandatory removal subject nevi, located on the feet, soles, the nail bed. Oncologists warn that self-medication moles and age spots dangerous because of frequent injury may contribute to the regeneration of them in melanoma. All remote moles are subject to mandatory histologic (morphological) study.
Prevention of melanoma. Be sure to take a shower after swimming in open water areas and wipe entire body dry with a towel. Remember that a drop of water, sea salt crystals attract the sun as lenses, and as a result increases the harmful effects of ultraviolet radiation (insolation). The most dangerous time tanning from 10 to 15 hours.
Немає коментарів:
Дописати коментар