Skin cancer lesions
Skin cancer is devided into three different stages, from the least to the most dangerous :Basal cell carcinoma (or basal cell carcinoma epithelioma – The most common type of skin cancer, a disease in which the cancer cells resemble the basal cells of the epidermis, the outer layer of the skin.
What is Basal cell carcinomas
Basal cell carcinoma starts in the outer layer of the skin called the epidermis. It grows slowly and is painless ,it usually appear as the classic “sore that doesn’t heal.” A bleeding or scabbing sore that seems to get somewhat better, then recurs and starts to bleed, may be a basal cell carcinoma (skin cancer).
Most basal cell carcinomas are on the face and neck where the skin is exposed to sunlight. However, a fair number show up on parts of the body such as the abdomen, leg, and scalp exposed to little or no sunlight.
Skin cancer and precancerous lesions
1. Eearly skin cancer, often with a number of early precancerous lesions similar to the surface and can not be judged accurately by pronogsis, biopsy is the best diagnostic method. Precancerous lesions do not cause life treathening , but if it is not treated properly or effectively it might cause to cancer.
2. Early skin cancer symptoms were erythema-like papules (Redness due to capillary dilation ), often accompanied by squamous surface ( scale like) or the formation of crusts, symptoms of psoriasis, eczema, inflammation and other benign skin disease similar. There will be further development of lesions characteristic of certain signs, such as a shiny, translucent papules-like nodules, and the surface of bleeding associated with telangiectasia. Or scar-like smooth surface of the fibrous plaque, no significant telangiectasia, ulceration, and uplift. Or black lesions, each integration dot.
3.Squamous cell carcinoma (the first stage of which is called actinic keratosis)
melanomaSquamous cell carcinoma: Cancer that begins in squamous cells — thin, flat cells that look under the microscope like fish scales. quamous cells are found in the tissue that forms the surface of the skin, the lining of hollow organs of the body, and the passages of the respiratory and digestive tracts.Squamous cell carcinomas may arise in any of these tissues. The word “squamous” came from the Latin squama meaning “the scale of a fish or serpent.”