Brain Cancer

What Is Brain Cancer?

Cancer Treatment in Orange County

At Orange County CyberKnife, we understand how difficult a cancer diagnosis can be, whether it’s for you or a loved one. If you or someone you know has recently been diagnosed with brain cancer, this probably an extremely difficult time. It’s normal to feel a wide range of emotions after a cancer diagnosis, and many people feel helpless after receiving the news – but there is hope. At OC CyberKnife, we’ve helped countless patients overcome their cancer through state-of-the-art cancer treatments. First, let’s understand the facts of brain cancer and see what treatment options are available to you.

What is Brain Cancer?

Brain cancer forms when a number of cells in the brain experience abnormal growth, eventually causing a collection of damaged cells called a brain tumor. Brain cancer comes in two main forms:

  • Primary Brain Cancer: This occurs when a normal brain cell degrades into a cancerous cell, multiplying rapidly and eventually forming a tumor. Most primary brain tumors are either gliomas, meningiomas, pituitary adenomas, vestibular schwannomas, primary CNS lymphomas, or primitive neuroectodermal tumors (medulloblastomas). More than 35,000 people develop primary brain cancer every year.
  • Brain Metastases: Sometimes, cancer starts somewhere else in the body – like the breast, lung, or colon – and spreads through the brain through the bloodstream or another bodily fluid. Patients with advanced cancer may develop brain metastases some 25 – 50% of the time, and the most common sources for brain metastases are the lung (50%), breast (15%), or melanoma, renal, and colon (6%).

Symptoms of Brain Tumors

Symptoms and side effects of brain cancer vary widely between patients, and they’ll depend on the location, size, and orientation of the tumor. A few common brain tumor symptoms include:

  • Memory loss
  • Difficulty concentrating
  • Sudden changes in personality or mood
  • Sudden changes in vision, hearing, or speech
  • Weakness, numbness, or tingling in the extremities
  • Twitching, seizures, muscle jerks, or convulsions where no history of these issues existed

Contact Your Brain Cancer Treatment Experts

At Orange County CyberKnife, we’re experts in using the most advanced radiation oncology techniques to eliminate cancerous tumors in the brain and other parts of the body. If you’d like to learn more about how we can help you overcome cancer and reclaim a normal, healthy life, please feel free to call us at 714.962.7100 or reach out to us at our contact page. We hope to hear from you soon, and we look forward to partnering with you in your fight against cancer.

Find out more about brain cancer:

Brain Cancer: Types & Stages

Grading helps us understand how aggressive, or malignant, a tumor is. Staging tells us if the tumor has spread and if so, how far.

There are four tumor grades — I, II, III, and IV. The higher the grade, the more malignant the tumor. Tumor grading helps the doctor, patient, and caregivers/family members to better understand the patient’s condition. It also helps the doctor plan treatment and predict outcome.

Below are description of the various tumor grades, based on the World Health Organization (WHO) grading system.

Grade I: These are the least malignant tumors and are usually associated with long­term survival. They grow slowly and have an almost normal appearance when viewed through a microscope. Surgery alone may be an effective treatment for this grade tumor. Pilocytic astrocytoma, craniopharnygioma, and many tumors of neurons—gangliocytoma and ganglioglioma, for instance—are examples of grade I tumors.

Grade II: These tumors are slow­growing and look slightly abnormal under a microscope. Some can spread into nearby normal tissue and recur, sometimes as a higher grade tumor.

Grade III: These tumors are, by definition, malignant although there is not always a big difference between grade II and grade III tumors. The cells of a grade III tumor are actively reproducing abnormal cells, which grow into nearby normal brain tissue. These tumors tend to recur, often as a grade IV.

Grade IV: These are the most malignant tumors. They reproduce rapidly, can have a bizarre appearance when viewed under the microscope, and easily grow into nearby normal brain tissue. These tumors form new blood vessels so they can maintain their rapid growth. They also have areas of dead cells in their centers. The glioblastoma multiforme is the most common example of a grade IV tumor

Tumors can contain more than one grade of cell. The highest, or most malignant, grade of cell determines the grade of the tumor, even if most of the tumor is made up of lower­grade cells.

Brain Cancer: Detection & Treatment Options

Diagnosing Brain Cancer

The brain is the command center of the body, responsible for thought, feeling, sensation, motor function, memory, and all experience. It’s the organ that keeps all the other organs working together – so cancers of the brain are always very serious. Tumors in the brain cause damage by pressing on nerves and areas of the brain, interfering with the brain’s ability to communicate with the rest of the body and perform its regular functions.

Brain cancer comes in two main forms:

  • Primary: This refers to a tumor that originates in the brain. Primary tumors rarely spread to other areas of the body, and they may be either noncancerous (benign) or cancerous (malignant). Whether benign or malignant, they generally require some form of treatment.
  • Metastatic: This is a tumor that started somewhere else in the body and spread to the brain. These tumors are always cancerous and always require treatment.

Symptoms of Brain Cancer

Because the brain plays such a diverse set of roles in the body, brain cancer can have a wide variety of symptoms depending on the size and location of the tumor. Brain cancer may cause any of the following symptoms:

  • Persistent or severe headache
  • Difficulty walking, muscular weakness, or problems with muscle coordination
  • Nausea
  • Vomiting
  • Vertigo or balance problems
  • Confusion or problems speaking
  • Blurred vision
  • Sudden changes in personality
  • Seizures
  • Sleeplessness

It is generally difficult to diagnose brain cancer purely through symptoms. In most cases, an imaging procedure like an MRI is required to diagnose brain cancer.

Treatment Options for Brain Cancer

If brain cancer is diagnosed, there are a number of treatment options available to you. While past treatments would often rely on surgery, modern treatments use other techniques to create treatment solutions that are far less invasive, more comfortable, and more effective. At OC CyberKnife, we’re proud to offer one of the most effective radiation therapy treatments on the market today. We’ll work with you to determine a treatment course based on several factors:

  • The type of tumor
  • The location of the tumor
  • The size of the tumor
  • Your age and general medical condition

At OC CyberKnife, we offer several treatment options for brain cancer.


CyberKnife is a revolutionary radiosurgery system designed to deliver high-dose radiation directly to the site of a tumor while minimizing damage to the surrounding tissue. The CyberKnife system combines a variety of highly advanced medical technologies to create a noninvasive, safe, and comfortable cancer treatment method that’s highly effective on multiple types of cancers.

CyberKnife works by delivering a beam of high-intensity radiation directly to the site of the tumor. This radiation interferes with the ability of the tumor cells to multiply, and once the existing cells die, the tumor is naturally eliminated by the body. The radiation is precisely measured and calibrated by your radiation oncologist, medical physicist, and dosimetrist, and CyberKnife’s advanced imaging and motion tracking systems ensure that the beam attacks the tumor precisely, minimizing damage to other areas.

Thanks to the Synchrony Respiratory Tracking System, CyberKnife can track minute changes in the tumor’s location due to normal movement and breathing and adjust the radiation beam to account for this movement. Additionally, CyberKnife’s robotic arm allows for 360º movement, letting CyberKnife apply radiation to every side of the tumor. CyberKnife treatments are completed in as little as 1 to 5 days, have few side effects, and have been clinically shown to be a highly effective cancer treatment system.

Other External Radiation Treatments

If you and your doctor determine that CyberKnife is not an option for you, there are a number of other treatment methods available. You and your doctor may choose any of the following treatments:

  • 3D Conformal Radiotherapy (3D-CRT): This method uses imaging technology like CT and MRI scans to plan your radiation dose in detail, selecting the ideal angle for radiation. Combining these technologies allows for a maximum dose of radiation to be delivered to the tumor while minimizing the dose delivered to healthy, surrounding tissues.
  • Intensity Modulated Radiation Therapy (IMRT): This type of treatment uses 3D imaging technology to “paint” radiation doses onto the tumor. The doses are applied from various angles, and the intensity of the radiation is modulated from angle to angle. This allows different doses of radiation to be applied to different areas of the tumor, creating a highly effective treatment option while minimizing exposure to surrounding tissues.

Contact Your Orange County Cancer Treatment Center

No matter what your condition or what treatment method you’re interested in, the cancer treatment specialists at OC CyberKnife are here to help. We know that a cancer diagnosis can feel like a crushing blow, but trust us: there is hope. If you or a loved one have recently been diagnosed with cancer, we would be happy to speak with you. Feel free to call us at 714.962.7100 with any questions or reach out to us at our contact page to schedule a consultation. We can’t wait to hear from you, and we look forward to helping you beat cancer and reclaim total health.

Brain Cancer: FAQs

Answer :

The exact cause of brain tumors is yet unknown. Physicians, therefore, usually cannot explain why one person develops a brain tumor and another does not. However, research has shown that people with certain risk factors (e.g., family history, exposure to radiation or certain other chemicals, coexistence of a disease such as neurofibromatosis) are more likely than others to develop a brain tumor.

Answer :

Not all patients with brain tumors experience seizures, but some do. If you have never had a seizure, there is a good chance you never will.

There are many different types of seizures. The type of seizure depends on the location of the brain tumor. Some of the more common types of seizures, which usually do not occur with loss of consciousness, include:

  • Involuntary shaking of an arm or leg
  • Facial twitching
  • Difficulty speaking
  • Detection of unpleasant odors that no one else senses
  • One type of seizure, a generalized tonic­clonic seizure, involves total body shaking with loss of
  • consciousness

Patients who have experienced a seizure are put on anti­seizure (anti­epileptic) medication. Some of the more common medications used are Dilantin, Keppra, Depakote and Tegretol. Your physician will determine the most appropriate medication and dosage for you.

Answer :

CT (computed tomography) scan uses an X­ray machine linked to a computer to take a series of detailed pictures of the head to reveal any tumors present in the brain. MRI (magnetic resonance imaging) uses magnetism, radio waves and a computer to produce detailed images of the brain. With both CT and MRI, the patient may receive an injection of a special dye to make abnormal brain tissue easier to identify in the pictures.

Generally speaking, CT is used more frequently than MRI because it is more widely available, is less expensive and can be used on patients who cannot undergo MRI­ including those with cardiac monitors or pacemakers, permanent surgical clips, or any metal fragments within their body­due to potential problems that may be caused by the magnetic fields. Compared to CT, however, MRI offers the following advantages:

  • Does not use radiation to produce images
  • Has higher accuracy in distinguishing between healthy and diseased tissue
  • Provides pictures from different angles, allowing physicians to develop 3­D
  • Produces better pictures of tumors located close to bone
Answer :

Primary brain tumors arise in brain tissue, whereas metastatic, or secondary, brain tumors start as cancer cells in another part of the body and metastasize, or spread, to the brain through the blood stream. The most common types of tumors that spread to the brain are lung, breast, colon and kidney cancers, as well as malignant melanoma (skin cancer).

Metastatic brain tumors are far more common than primary brain tumors. According to the American Brain Tumor Association, of the 190,000+ Americans diagnosed with a brain tumor each year, slightly more than 40,000 have primary tumors, while the remaining 150,000 have metastatic tumors.

Answer :

Brain tumors are cancerous in some cases, but not all. Malignant (high­grade) brain tumors contain cancer cells, but benign (low­grade) brain tumors do not. In very rare cases, some benign brain tumors later develop into cancer.
Two of the most common forms of brain cancer are metastatic brain tumors (cancers that have spread to brain tissue from elsewhere in the body) and glioblastoma multiforme, or GBM (the most aggressive form of gliomas­primary brain tumors arising from glial cells in the brain).

Answer :

Generally speaking, a benign tumor or condition is not harmful. However, that is not the case with anything growing in the brain, including benign tumors. There is a confined space within the skull, meaning it cannot expand to accommodate a growing tumor. Therefore, as they grow, benign brain tumors have the potential to become life threatening due to pressure on the brain. Fortunately, benign tumors generally grow slowly and rarely grow back after being surgically removed. Depending on the location and size of the tumor, however, benign brain tumors can sometimes be difficult to treat