All About of Cancer Disease

Cancer is the uncontrolled growth of abnormal cells throughout the body. The abnormal cells are cancer cells as malignant cells or tumor cells. Many types of cancer and abnormal cells to cancerous tissues are under the name of the tissue of abnormal cells (eg breast cancer, lung cancer, colon cancer) is identified. Cancer is not limited to humans, animals and other living organisms, possibly cancer. Below is a graph showing the normal cell division and shows how, when a cell is damaged or altered without repair of his system, so the cell. We also see what can happen when they are not repaired or damaged cells die and are not cancer cells multiply and with uncontrolled growth, grow a mass of cancer cells. Often, cancer cells can travel to from this mass of cells of origin, through the blood and lymphatic system and lodge in other organs, where they can once again repeat the cycle of uncontrolled growth. This process of cancer cells, Wherein a space and more in another area of ​​the body metastases or metastatic disease. For example, if breast cancer cells to bone (or elsewhere) to spread, this means that the individual is suffering from metastatic breast cancer.

cancer

All that cause a normal cell of the body can not develop normally, can possibly cause cancer. Many things can and abnormal cells have been linked to the development of cancer. Some causes of cancer remain unknown, while other types of cancer can develop more of a known cause. Some can be influenced by genetic stage of the development of a person. Many patients develop cancer due to a combination of these factors. Although it may often be difficult or impossible, the trigger event (s) who develop cancer in a Particular person to deter mine the cause, research has provided clinicians with a number of possible causes, Which alone or jointly with other causes, are good candidates to initiate cancer. The following is a list of the main causes and is not all-inclusive as specific causes examined as advances in research are added regularly:

- Chemicals and the exhibits toxic compounds: benzene, asbestos, nickel, cadmium, vinyl chloride, benzidine, N-nitro amines, tobacco smoke or cigarette (containing at least 66 known cancer-causing chemicals and toxins floating) and aflatoxin

- Ionizing radiation: Uranium, radon, ultraviolet radiation, alpha radiation, beta-, gamma-and X-ray-emitting sources

- Pathogens: studied human papillomaviruses (HPV) infection, EBV, or Epstein-Barr virus, hepatitis B and C, Kaposi's sarcoma-associated herpes virus (KSHV), Merkel cell polyomavirus, Schistosoma species, and Helicobacter pylori, other bacteria as possible. Agents

- Genetics: A number of specific cancers have been linked to human genes in combination and are as follows: breast, ovarian, colon, prostate, skin melanoma, specific genes and other details are beyond the scope of this article in the rule Sun that the reader is referred by to http://www.cancer.gov/cancertopics/genetics for more information about genetics and cancer.

It is important to note that most people are exposed to carcinogens Thurs not become ill (eg sunlight, cigarette smoke, and x-rays) in their lives, but many people with cancer. In addition, many genes that are associated with cancer, but not developed. Why? Although researchers are not capable of a satisfactory response for each individual, it is clear that the material and the amount or level of cancer-causing person is exposed, the greater the chance that the person will develop cancer. In addition, individuals with genetic links to cancer for similar reasons (lack of sufficient momentum to the generic function) to develop. In addition, some people have a strong immune response that controls or cells that are or may Eliminates be cancer cells. There is evidence that some foods lifestyle to allow for important role in connection with the immune system or prevent the survival of cancer cells play. For these reasons, it is difficult to assign a Particular cancer in many people.

Prove that difficult a substance does not cause or is not related to at Increased risk of cancer is. For example, as antiperspirants may be breast cancer does not fit what some researchers and others. The official position by the NCI, the "Research is needed to handle this relationship and other factors that may be affected be investigated."This unsatisfactory conclusion is presented because the data collected to date is contradictory. Other receivables, Which are similar require intensive and expensive research that can never be done. Notice may be prudent to avoid large amounts of all compounds, even remotely related to cancer, but it can be difficult in a complex, technologically advanced societies modern.

A physical examination and medical history, especially the history of the symptoms are the first steps in the diagnosis of cancer. In many cases, the medical provider is a series of tests are ordered, most of Which are of the type of cancer and where he is in or on the person's body is suspected to be determined. In addition to order a complete blood count most carers, electrolyte levels, and in some cases, other blood tests that Provide further information (for example, a PSA test or may supply PSA can lead and teach, as additional tests examined prostate biopsy to do ).

help fight cancer

Imaging studies are often used to help doctors detect abnormalities in the body, Which may be cancer. X-ray, CT and MRI and ultrasound are frequently used tools to examine the body. Other tests, analyzed as endoscopy, with variations of the devices used, the visualization of tissue in the intestine, throat and bronchial tubes, may be the permit cancer. In areas not well Represented Which can (within Certain bone or lymph nodes, for example) is often used scintigraphy. Involves the test ingestion or intravenous injection of a radioactive substance that can slightly be concentrated in the tissue and detected abnormal.

Previous tests can be very good for the localization of the disturbance in the body, many doctors believe that some of the tests for the diagnosis Provide a guess of cancer. However, in most patients, the definitive diagnosis of cancer on the examination of a tissue sample from tissue that may be cancerous by a qualified pathologist is based. Some biopsy specimens are Relatively easy to obtain (eg, skin biopsy performed on tissue or intestine with endoscope with a biopsy, biopsy system). Other biopsies may require surgery (eg, brain tissue or lymph node biopsy). In some cases, the surgery to diagnose cancer, lead to a cure, if all the cancerous tissue is removed in the biopsy.

The biopsy may Provide more definitive diagnosis of cancer, they can find out what kind of cancer (primary or metastatic examined as a brain tumor) and the "scene" of cancer cells. The stage or cancer staging is a way for clinicians and researchers to estimate the degree of progress or the severity of the disease. The following section Describes the methods for collection of general types of cancer.

Treatment for cancer is usually developed by a team of doctors or patients and oncologists based on the cancer type and stage of cancer is based. Most treatments are specifically designed for each. In some people, the diagnosis and treatment occur simultaneously, if the cancer is completely removed surgically when the surgeon removed tissue from the biopsy.

Although patients may receive a single treatment protocol for cancer, most treatments, one or more of the following options are: surgery, chemotherapy, radiotherapy or combined treatment (a combination of two or three treatments).

Variations of these individuals to receive treatment for cancer.Patients with cancers that can not be cured (completely removed) by surgery usually receive a combination therapy, deter mine the composition of the type and stage of cancer.

Palliative treatment (medical care or treatment are used to reduce symptoms, but not able to cure the patient) use the same treatments Described above. It is made with the intent to expand and improve the quality of life of terminally ill cancer patients. There are many other palliative treatments for pain relievers and symptoms as seeking to reduce nausea medications.