Squamous cell carcinoma (or squamous cell carcinoma) develops in the middle layers of the epidermis and accounts for 20% of all cases of skin cancer.

Usually occurs in areas that have been exposed to the sun, like the top of the nose, ears, forehead, upper lip and backs of hands.

You can also occur in areas of skin that have been in contact with chemicals that have undergone radiotherapy, or have been burned. In the genital area, appears less frequently.

Usually occurs usually a red bump and drive. Sometimes it may look, scaly, or bleed and develop a scab that never heals. As you have enlarged nodular and sometimes presents a warty surface. In the end, it becomes an open sore and growing into the underlying tissue.

Through the lymph system can extend to any body part, but this happens rarely. It is a tumor with a tendency to grow and be on the same site, once removed. But it tends to spread.

Basal cell carcinoma is the most common type of nonmelanoma skin cancer. About 75% of all skin cancers are basal cell carcinomas.

Subsequent to the bottom layer of the epidermis, consisting of basal cells. And usually occurs in areas that have been exposed to the sun, like the head and neck.

It grows slowly and rarely spreads to other parts of the body so it is less aggressive than squamous cell carcinoma. Although not for that we must stop treating it as if nothing is done, over time, will spread to surrounding tissues.

It looks like this is a minor bump with a smooth and shiny appearance. But it can be shaped scar, still firm to the touch. Usually develops slowly although the rate varies from one to another.

It is not uncommon to reappear once the person has been treated. 35% to 50% of those diagnosed will develop a new skin cancer within five years from first diagnosis.