All you need to know about brain Tumours

treatment for brain tumor

What is a brain tumor?

A brain tumor is a collection, or mass, of abnormal cells in your brain. Your skull, which encloses your brain, is very rigid. Any growth inside such a restricted space can cause problems. Brain tumors can be cancerous (malignant) or noncancerous (benign). When benign or malignant tumors grow, they can cause the pressure inside your skull to increase. This can cause brain damage, and it can be life-threatening. Neurologist in Hyderabad.

Brain tumors are categorized as primary or secondary. A primary brain tumor originates in your brain. Many primary brain tumors are benign. A secondary brain tumor, also known as a metastatic brain tumor, occurs when cancer cells spread to your brain from another organ, such as your lung or breast.

Types of brain tumors

Primary brain tumors

Primary brain tumors originate in your brain. They can develop from your:

  • brain cells
  • the membranes that surround your brain, which are called meninges
  • nerve cells
  • glands

Primary tumors can be benign or cancerous. In adults, the most common types of brain tumors are gliomas and meningiomas. Best Neuro Hospital in Hyderabad.

Gliomas:

Gliomas are tumors that develop from glial cells. These cells normally:

  • support the structure of your central nervous system
  • provide nutrition to your central nervous system
  • clean cellular waste
  • break down dead neurons
  • Gliomas can develop from different types of glial cells.

 

The types of tumors that begin in glial cells are:

astrocytic tumors such as astrocytomas, which originate in the cerebrum

oligodendroglial tumors, which are often found in the frontal temporal lobes

glioblastomas, which originate in the supportive brain tissue and are the most aggressive type Other primary brain tumors – Neurologist in Kachiguda.

Other primary brain tumors include:
  • pituitary tumors, which are usually benign
  • pineal gland tumors, which can be benign or malignant
  • ependymomas, which are usually benign
  • craniopharyngiomas, which occur mostly in children and are benign but can have clinical symptoms like changes in vision and premature puberty
  • primary central nervous system (CNS) lymphomas, which are malignant
  • primary germ cell tumors of the brain, which can be benign or malignant
  • meningiomas, which originate in the meninges
  • schwannomas, which originate in cells that produce the protective cover of your nerves (myelin sheath) called Schwann cells

Most meningiomas and schwannomas occur in people between the ages of 40 and 70. Meningiomas are more common in women than men. Schwannomas occur equally in both men and women. These tumors are usually benign, but they can cause complications because of their size and location. Cancerous meningiomas and schwannomas are rare but can be very aggressive.

Secondary brain tumors

Secondary brain tumors make up the majority of brain cancers. They start in one part of the body and spread, or metastasize, to the brain. The following can metastasize to the brain:

  • lung cancer
  • breast cancer
  • kidney cancer
  • skin cancer

Secondary brain tumors are always malignant. Benign tumors don’t spread from one part of your body to another.

What are the risk factors for a brain tumor?

Risk factors for brain tumors include:

Family history

Only about 5 to 10 percent of all cancers are genetically inherited, or hereditary. It’s rare for a brain tumor to be genetically inherited. Talk to your doctor if several people in your family have been diagnosed with a brain tumor. Your doctor can recommend a genetic counselor for you.

Age

Risk for most types of brain tumors increases with age.

Race

Brain tumors in general are more common among Caucasians. However, African-American people are more likely to get meningiomas.

Chemical exposure

Being exposed to certain chemicals, such as those you might find in a work environment, can increase your risk for brain cancer. The National Institute for Occupational Safety and HealthTrusted Source keeps a list of potential cancer-causing chemicals found in work places.

Exposure to radiation

People who have been exposed to ionizing radiation have an increased risk of brain tumors. You can be exposed to ionizing radiation through high-radiation cancer therapies. You can also be exposed to radiation from nuclear fallout. The nuclear power plant incidents in Fukushima and Chernobyl are examples of how people can be exposed to ionizing radiation.

No history of chicken pox

According tothe American Brain Tumor Association, people with a history of childhood chicken pox have a decreased risk of getting brain tumors.

What are the symptoms of a brain tumor?

Symptoms of brain tumors depend on the location and size of the tumor. Some tumors cause direct damage by invading brain tissue and some tumors cause pressure on the surrounding brain. You’ll have noticeable symptoms when a growing tumor is putting pressure on your brain tissue.

Headaches are a common symptom of a brain tumor. You may experience headaches that:

are worse in the morning when waking up occur while you’re sleeping are made worse by coughing, sneezing, or exercise You may also experience:

  • Vomiting
  • Blurred vision or double vision
  • Confusion
  • Seizures (especially in adults)
  • Weakness of a limb or part of the face
  • A change in mental functioning
Other common symptoms include:
  • Clumsiness
  • Memory loss
  • Confusion
  • Difficulty writing or reading
  • Changes in the ability to hear, taste, or smell
  • Decreased alertness, which may include drowsiness and loss of consciousness
  • Difficulty swallowing
  • Dizziness or vertigo
  • Eye problems, such as drooping eyelids and unequal pupils
  • Uncontrollable movements
  • Hand tremors
  • Loss of balance
  • Loss of bladder or bowel control
  • Numbness or tingling on one side of the body
  • Trouble speaking or understanding what others are saying
  • Changes in mood, personality, emotions, and behavior
  • Difficulty walking
  • Muscle weakness in the face, arm, or leg
  • Symptoms of pituitary tumors
The following symptoms can occur with pituitary tumors:
  • nipple discharge, or galactorrhea
  • lack of menstruation in women
  • development of breast tissue in men, or gynecomastia
  • enlargement of the hands and feet
  • sensitivity to heat or cold
  • increased amounts of body hair, or hirsutism
  • low blood pressure
  • obesity
  • changes in vision, such as blurry vision or tunnel vision

How are brain tumors diagnosed?

Diagnosis of a brain tumor begins with a physical exam and a look at your medical history.

The physical exam includes a very detailed neurological examination. Your doctor will conduct a test to see if your cranial nerves are intact. These are the nerves that originate in your brain.

Your doctor will look inside your eyes with an ophthalmoscope, which is an instrument that shines a light through your pupils and onto your retinas. This allows your doctor to check how your pupils react to light. It also allows your doctor to look directly into your eyes to see if there’s any swelling of the optic nerve. When pressure increases inside the skull, changes in the optic nerve can occur.

 

The doctor may also evaluate your:
  • muscle strength
  • coordination
  • memory
  • ability to do mathematical calculations

Your doctor may order more tests after they finish the physical exam. These could include:

CT scan of the head

CT scans are ways for your doctor get a more detailed scan of your body than they could with an X-ray machine. This can be done with or without contrast.

Contrast is achieved in a CT scan of the head by using a special dye that helps doctors see some structures, like blood vessels, more clearly.

MRI of the head

If you have an MRI of your head, a special dye can be used to help your doctor detect tumors. An MRI is different from a CT scan because it doesn’t use radiation, and it generally provides much more detailed pictures of the structures of the brain itself.

 

Angiography

This study uses a dye that’s injected into your artery, usually in the groin area. The dye travels to the arteries in your brain. It allows your doctor to see what the blood supply of the tumors looks like. This information is useful at the time of surgery.

 

Skull X-rays

Brain tumors can cause breaks or fractures in the bones of the skull, and specific X-rays can show if this has occurred. These X-rays can also pick up calcium deposits, which are sometimes contained within a tumor. Calcium deposits may be in your bloodstream if your cancer has moved to your bones.

 

Biopsy

A small piece of the tumor is obtained during a biopsy. A specialist called a neuropathologist will examine it. The biopsy will identify if the tumor cells are benign or malignant. It will also determine whether the cancer originated in your brain or another part of your body.

Treatment of brain tumors

The treatment of a brain tumor depends on:

  • the type of tumor
  • the size of the tumor
  • the location of the tumor

The most common treatment for malignant brain tumors is surgery. The goal is to remove as much of the cancer as possible without causing damage to the healthy parts of the brain. While the location of some tumors allows for easy and safe removal, other tumors may be located in an area that limits how much of the tumor can be removed. Even partial removal of brain cancer can be beneficial.

 

Risks of brain surgery include infection and bleeding. Clinically dangerous benign tumors are also surgically removed. Metastatic brain tumors are treated according to guidelines for the type of original cancer. Neurologist in Kphb.

Surgery can be combined with other treatments, such as radiation therapy and chemotherapy.

Physical therapy, occupational therapy, and speech therapy can help you to recover after neurosurgery.

 

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