• Though such growths are widely known as brain tumors, not all of them are cancer. Cancer is the word set aside for malignant tumors.
• The growth and spread of malignant tumors is quite aggressive, that tends to overpower normal cells by occupying their location, blood and nutrients. (tumor cells have requirements of blood and nutrients quite analogous to all cells present in the body.)
• Benign tumors are those that do not proliferate belligerently.
• Generally, a benign tumor is less grave as compared to a malignant tumor, however it does lead to several problems in the brain.

Primary Brain Cancers

The brain comprises of several kinds of cells.

• Few of the brain cancers occur due to the transformation of one kind of cell from its normal type. No sooner does the transformation takes place, the abnormal growth and multiplication of the cells start.
• The unprecedented growth leads to them transforming into a mass or tumor.
• Brain tumors are the outcome of this alteration and irregular development of brain cells are known as brain tumors as they initiate in the brain.
• The most prevalent primary brain tumors stated below have got their name on the basis of what part of the brain or the brain cell type they originate from.
  • Gliomas
    Including astrocytomas, oligodendrogliomas, ependymomas and choroid plexus papillomas.
  • Meningiomas
  • Pituitary adenomas
  • Vestibular schwannomas
  • Primitive neuroectodermal tumors (medulloblatomas)

Metastatic Brain Cancer

Metastatic brain cancer comprise of cancer cells that are part of a tumor located in another area of the body. The cancerous cells metastasize or spread to the brain from a different tumor. Nearly twenty-five percent of tumors located in a different location in the body spread to the brain.

In the United States, brain tumors are known to be affecting one in every five thousand individuals.

Brain Cancer Causes

As is the case with tumors present in the other parts of the body, the precise reason for majority of the brain tumors is unclear. Hereditary factors, varied environmental contaminants, radiation and cigarette smoking has been associated to brain cancers, however, in majority of the cases no definite reason could be deciphered.

The below stated factors have been outlined as probable risk factors for primary brain tumors. If these factors would in actuality raise one’s likelihood of developing brain tumor is unsure.

• Radiation given to the head.
• Particular inheritable conditions.
• Being infected with HIV.

This family of tumors comprises of:

• Ewing tumor of the bone – This kind of tumor is detected in the bones of the legs, arms, chest, trunk, back or even the head region. There are three kinds of Ewing tumor of the bone namely:
  • Classic Ewing sarcoma – A form of cancer also known as peripheral neuroectodermal tumor and pPNET that develops in the bone or soft tissue.
  • Primitive neuroectodermal tumor or PNET – One of the clusters of cancers developing from analogous kinds of early cells, sharing particular biochemical and genetic attributes. Some of the primitive neuroectodermal tumors start developing in the brain and CNS or Central Nervous System known as CNS-PNET, and others developing in locations outside the perimeters of the brain like limbs, pelvic region and chest wall known as the peripheral PNET or also called PNET.
  • Askin tumor or PNET of the chest wall – This form of tumor affects the chest wall that comprises of the muscles, joints and bones that constitute the region lying between the neck and the abdomen.

• Extraosseous Ewing Sarcoma ( tumor proliferating in the tissue not involving the bone or found outside the bone). This form of soft tissue is observed in regions of the trunk, arms, legs, head and the neck.

Ewing Tumor Signs and Symptoms:

The following stated symptoms could be occurring due to Ewing family of tumors though there might be other conditions that might be eliciting similar symptoms. Medical assistance needs to be taken in case any of the following symptoms occur.

• A pain that may or may not be accompanied by swelling generally noted in the areas of the arms, legs, chest, back or the pelvic area that lies between the hips.
• A lump formation developing in the arms, legs, chest or the pelvic area that might give a warm sensation.
• Fever occurring due to no apparent and identified reason.
• An unexpected rupture or crack in the bone for no recognised reason.