Cancer

Cancer is a group of diseases in which the body produces an excess of malignant cells (known as carcinogens or cancer), with growth and division beyond the normal limits.

Normal cells at the contact with neighboring cells inhibit reproduction, but the malignant cellsdo not have this brake. Most cancers form tumors but some, like leukemia.
Cancer can affect all ages, even fetuses, but risk increases the more common with age.Cancer causes about 13% of all deaths.

There are over 100 different types of cancer. Most cancers take the name of the organ orcells where they start.
The types of cancer can be grouped into larger categories. The main categories of cancer are:

• Carcinoma: Cancer that begins in the skin or in tissues that line or cover internal organs.
• Sarcoma: Cancer that begins in bone, cartilage, fat, muscle, blood vessels or otherconnective or supportive tissue.
• Leukemia: Cancer that begins in the tissue in which blood is formed, such as bone marrow,and causes them to produce large numbers of abnormal blood cells that enter the blood.
• Lymphoma and myeloma: cancers that begin in cells of the immune system.
• Central nervous system cancers: cancers that begin in the tissues of the brain and spinalcord.

Treatments for cancer:

Cancer treatment varies depending on age, health, type and stage of cancer. Today, medicinehas different procedures to try to heal this process.

• Surgical procedures: vary depending on where the cancer is located and how advanced the disease is.
• Radiation-radiation: this treatment is to apply X-ray
• Chemotherapy is a treatment that is to provide a drug that kills cancer cells. This medicine may be used in various stages of treatment: after a surgical procedure to control the growth of atumor, or to relieve some symptoms related to cancer.

Irene and Silvia