Brain Cancer Diseases

Cancer is most frightful diseases for human, because often time this diseases can't be cured, especially brain cancer. Cancer become difficult to be cured if the diseases have passed of several phases. Actually this diseases give an alarm at the first, this sign called as symptom. General cancer means that there are strange cell growing. Brain Cancer are cells grow to form a mass of cancer tissue (tumor)  that interferes with brain functions such as muscle control, sensation, memory, and other normal body function.

Tumor that composed of cancer cells are called malignant tumors, and those composed of noncancerous cells are called benign tumors. Cancer cells that develop directly from brain tissue are called primary brain tumors while tumors that spread from other body sites to the brain are termed metastatic brain tumors.

Not all the brain cancers are similar, there are several grade of brain cancer that depend on the cell's growth rate. The list of this grade are as follows:

1. Grade 1, tissue benign cells look nearly like normal brain cells, they grow slowly.
2. Grade 2, at the malignant tissue, cells look less like normal cells than do the cells in a grade 1 tumor.
3. Grade 3, malignant tissue has cells look very different than the normal cells. The abnormal cells are actively growing (anaplastic).
4. Grade 4, malignant tissue has cells that look most abnormal and tend to grow quickly.

Brain cancer can caused by many factors, like chemicals, life style, or because of viral diseases like HIV. The chemicals like heavy metal that consume by human can became the main factor of cancer source after accumulate in the human brain. Life style like smoking people also risk factor of having cancer.