This article will provide a brief overview of brain tumors, highlighting symptoms, causes, and treatment options.
Although brain tumors are rare, approximately 17,000 new cases are reported
each year in the United States.
This figure results in many people panicking whenever they experience a severe
headache, dizziness, or confusion. Cancer is frightening, regardless of where
the abnormal cells develop. Nonetheless, when cancer develops in vital organs
or the brain, early diagnosis and treatment is essential. Cancer spreads very
rapidly, and could potentially affect other parts of the body. The more
widespread the cancer – the more difficult it is to cure. However, those
diagnosed with advanced brain cancer should remain optimistic. Many brain
cancer victims have beat the odds, and go on to lead long, healthy lives.
What is Brain Cancer?
Brain cancer is cancer that develops in the brain. Our bodies naturally
produce healthy cells. In rare cases, cells begin to abnormally divide. The
dividing cells result in growths called tumors. However, not all tumors are
cancerous. Sometimes, an overgrowth of normal cells may also cause a tumor.
These tumors may or may not present the same symptoms as cancerous tumors.
Thus, individuals diagnosed with a brain mass should not immediately conclude
that they have brain cancer. Nonetheless, non-cancerous tumors need to be
treated because they can cause damage to vital tissue organs. The two types of
brain tumors are termed benign tumors and malignant tumors.
What are Benign Tumors?
Benign brain tumors are essentially tumors that do not contain cancerous
cells. These are likely caused by an overgrowth of normal brain cells. Doctors
recommend surgically removing brain tumors due to the possibility of continual
growth. Additionally, large tumors may cause headaches, seizures, memory loss,
and numbness. On average, benign tumors that are surgically removed do not
recur. However, doctors will generally monitor patients periodically to ensure
that additional brains masses do not begin to develop.
What are Malignant Brain Tumors?
Cancerous cells are present in malignant brain tumors. A brain cancer diagnosis
may cause a range of emotions. Victims may feel confused, terrified, and angry.
These tumors are life-threatening, thus they require immediate treatment.
Malignant tumors grow rapidly, and may quickly spread to healthy parts of the
brain. This sort of cancer has two grades: low grade and high grade. Low grade
brain cancer refers to abnormal cells that develop at a slower rate, whereas
high grade brain cancer refers to cancer that is spreading and growing at an
accelerated rate.
Causes of Brain Cancer
Physicians and researchers are unable to pinpoint possible causes of brain
cancer. However, it has been noted that over 80% of all brain cancer begins in
other parts of the body. Primary brain cancer, or cancer that begins in the
brain tissue, is rare. Primary brain cancer seldom affects more than one member
of a family, which throws the hereditary and gene theory out the window. On the
other hand, families with a history of cancer may include several members with
cancer that originated in other parts of the body and spread to the brain.
Brain cancer appears to be a random disease that affects humans in two age
groups.
Children under the age of 12, and adults over the age of 40 are at an
increased risk for developing brain cancer. Researchers who have thoroughly
studied brain cancer have discovered a brain cancer connection between
individuals who work in industries that expose them to toxic chemicals. For
examples, employees of drug and plastic manufacturers, embalmers, and chemists
report a high occurrence of brain cancer. In the mid-90's, one theory was that
cell phones caused brain tumors.
Although this theory has never been proven, a number of individuals have
developed brain masses on the side of their brain where cell phones are
positioned. Nonetheless, many who have conducted studies on cell phone safety
consider these incidents as pure coincidences, and firmly believe that cell
phones are a safe means of communication.
Symptoms of a Brain Tumor
Brain tumors symptoms depend largely on the size of the tumor. In the
beginning stage when the tumor is small, symptoms may not present themselves.
On the other hand, mild symptoms may be ignored until the tumor grows and
begins to cause more noticeable symptoms. The skull is a small space, thus
larger tumors will cause pressure on vital veins and tissues. When this occurs,
symptoms begin to show. Common symptoms of a brain tumor include:
Frequent, unexplained
headaches
Seizures
Nausea or vomiting
Numbness in arms or
legs
Frequent falling or
stumbling
Fatigue
Memory loss
Slurred speech
Individuals who display one or more of these symptoms should not jump to the
wrong conclusion. Many other less serious ailments cause similar symptoms.
However, it is important to visit a physician for a thorough examination to
determine the cause of such mysterious symptoms. In addition, even if test
conclude that a tumor is present, this does not necessarily mean that they
tumor is cancerous or life threatening.
Diagnosing a Brain Tumor
To accurately diagnose a cancerous brain tumor, physicians will perform a
physical examination and inquire about a patient's family medical history. A
neurological exam may also be necessary to check reflexes, coordination, and
pain response. Based on the results of these two exams, physicians will
conclude whether further testing is necessary. Imaging test such as a CAT scan
and MRI are used to detect tumors and changes in brain tissue. Moreover,
patients may undergo a skull X-ray or brain scan.
Treatments for Brain Tumors
The way a physician will choose to treat brain cancer depends on the size,
type, and location of the tumor. Sadly, some tumors are inoperable, thus
patients must rely on chemotherapy and radiation therapy to shrink tumors, and
kill cancerous cells. Surgery is a common treatment for most brain tumors.
Surgeons will either remove all of the tumor, or parts of the tumor. The
remaining tumor may be successfully treated with high energy rays (radiation)
that are intended to kill cancerous cells and prevent them from growing and spreading.
Radiation treatments may be given externally using a large machine, or
internally with implant radiation therapy. In the latter case, implants are
placed directly in the tumor. Chemotherapy is a drug that is intended to stop
the growth of cancerous cells. Patients may receive this treatment orally or
through an injection into the bloodstream. Often, a patient may receive several
cycles of chemotherapy following the surgical removal of a tumor to ensure that
all cancerous cells were removed, and to prevent the cancer from returning.