Brain tumors occur when cells in the brain begin to divide out of control and start to displace or invade nearby tissues. Occasionally, brain tumors can spread throughout the body. One of the
special characteristics of brain tumors is that benign (non-cancerous) tumors in the brain can be just as bad as malignant (cancerous) brain tumors. Any of the various normal cell types of the
brain can mutate and become a primary tumor, and the particular cell type which makes up the tumor controls how the tumor is likely to behave. It is locked into place by the skull and can't move
out of the way if a tumor is growing near it. If you are interested to know more, take a look at Brain Tumor Symptoms.
Symptoms of Brain Tumors
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 typically painless at first. As they grow, the first symptom is often a mild discomfort, which may steadily worsen into increasingly severe pain as the cancer enlarges.
Some very common symptoms of brain cancer are headaches and nausea; but these can really be caused by something else. So, headache and nausea shouldn't really be taken as brain cancer. Some other symptoms of brain cancer are related to incorrect working of some of the basic senses (that are mainly governed by brain) e.g. speech, vision and smell etc. Again, there is no point in getting worried all by yourself; you should, in any case, consult a qualified doctor and let them know clearly about the various symptoms that you have observed. The doctor can then diagnose whether it is brain cancer. You might be referred to a neurologist for further examination (if brain cancer is suspected).
Malignant Tumors are called also known as cancer. Cancer in this form has the readily available potential to invade and destory bordering tissues. Benign Tumors on the other hand do not invade the bordering tissues, or create metastases, rather they may localy grow to a great size. Under normal circumstances Benign Tumors will not return once they have been removed surgically.
Tumors in the Parietal lobe can cause the following: difficulty in understanding words reading and writing, problems with movements especially co-ordination of movements, disorientation numbers and calculations, weakness on one side of the body. Tumors in the Temporal lobe can cause the following: Fits, strange feelings like fear or familiarity like dejavu, unusual smells, blackouts, difficulties with speech, memory problems.
Brain tumors can occur at any age. Studies have shown that two major age groups are affected. From ages 3 to 12 and 40 to 70 are the age groups when brain cancer is formed. Since researchers have been able to gather this data, it has led to the discovery of some risk factors. Workers in certain industries are at a higher risk for brain cancer than workers in other industries. These include, rubber manufacturing, drug manufacturing, and oil refining.
A side from a weak blood vessel, there is also the case of an abnormal blood vessel. This is a condition known as arteriovenous malformation. Brain surgery is also necessary to repair damage to tissue covering the brain. It is also needed to remove pockets of infection in the brain or to relieve severe nerve or facial pain like trigeminal neuralgia and tic douloureux. For more info, visit Brain Tumor Symptoms.