Skin cancers caused by sun radiation - are melanomas
and non-melanoma skin cancers. The latter are basal cell carcinomas
- more frequent and squamous cell carcinomas. Generally for skin cancer
men suffer more often than women, and the incidence increases with age.
The incidence of skin cancer is closely related to long-term sun exposure and the type of skin complexion. Therefore, stop long solar baths!
SUN AND OTHER CAUSES OF CANCER SKIN
People with light skin, sunburn and sunburn tend to be particularly vulnerable. The location of skin cancers is also associated with the degree of skin exposure
for solar radiation, that's why so often the location of these cancers on exposed parts of the body, especially on the face.
How often do we have skin cancer?
Skin cancers constitute about 10% of all malignancies in Poland. This means that around 10,000 people are diagnosed annually. new cases. These are not very high rates of disease, because the majority of this type of cancer is caused by increased ultraviolet radiation associated with greater insolation than in our part of Europe.
Types of skin cancers:
- basal cell carcinoma (BCC - popular English abbreviation)
- squamous cell carcinoma (SCC - popular English abbreviation)
- skin melanoma
- other - mixed
Pre-cancerous lesions and ...
Skin cancer, like any other, does not arise immediately. It is preceded by pre-cancer lesions. It is only in their consequence that dangerous to health and life are created - skin melanomas and non-melanoma skin cancers. Pre-cancerous condition is called every lesion, on the basis of which, significantly more often than on the basis of other lesions, cancer develops.
Photo 1. A suspected birthmark of about 1 cm
... Ontogeny
Ontogenesis - a gradual transformation of healthy cells into mutant - cancerous. The process begins with changes at the molecular level - called cancer promotion. After the promotion stage comes the phase of progression, consisting in the appearance of an increasing number of mutated genes in the cell, up to the accumulation of a mutation that breaks down the control and repair mechanisms. It means the start of the cancer process.
What favors precancerous skin changes?
Pre-cancerous changes are favored by some life situations and habits, which include: long-term sunbathing, sunburn in childhood, light skin complexion, exposure to ionizing radiation, family history of skin cancer, scars and post-traumatic skin changes (ulcers, burns, chronic fistulas), toxic chemicals on the skin and in the air (arsenic, herbicides, certain fungicides, hydrocarbons, petroleum derivatives, petroleum tar synthetic antimalarial agents), as well as tobacco smoke.
