There are two main types of brain cancer. Primary brain cancer starts in the brain. Metastatic brain cancer starts somewhere else in the body and moves to the brain. Brain tumors can be benign, no cancer cells or malignant, with cancer cells that grow quickly.Primary brain cancer rarely spreads beyond the central nervous system, and the results of death by the uncontrolled growth of tumor in the limited space of the skull. Metastatic brain cancer indicates advanced disease and has a poor prognosis.
Metastatic brain tumors consist of cancer cells from a tumor elsewhere in the body. The cells spread to the brain from a tumor in a process called metastasis. About 25% of tumors elsewhere in the body of brain metastases.
The symptoms of brain cancer
Brain tumors can damage vital neurological pathways and invade and compress brain tissue. Symptoms usually develop over time and their characteristics depend on the location and size of the tumor.
Cancers are usually painless at first. As they grow, the first symptom is often mild discomfort, which can worsen progressively increasing severe pain during the expansion of cancer. The pain may be caused by the cancer or compression of erosion on the nerves or other structures.
The symptoms are caused by the tumor pressing on or invading other parts of your brain and avoiding to function normally.
A sign is a sign that something is wrong in the body. But signs are defined as things that can be seen by a doctor, nurse or health care professional. mouth breathing, rapid respiratory rate and abnormal sounds heard through a stethoscope may be signs of pneumonia.