Brain tumor - types, signs and symptoms, diagnosis and treatment
An abstract
An assortment of
strange cells in the mind is known as cerebrum growth. Learn about its types, signs and symptoms, diagnosis, and treatment
options.
Content
Introduction
What are the types of brain tumors?
What are the early signs and side effects of cerebrum
cancer?
How does a doctor diagnose a brain tumor?
What are the classes of brain tumors?
Can a brain tumor be cured?
Presentation:
The brain controls functions such as breathing, walking,
senses (smell, touch, and sight), memory, emotions and personality. When
abnormal cells grow and accumulate in the brain, it is called a brain tumor.
There are different types of these tumors, some are non-cancerous or benign and
others are cancerous or malignant. Tumors that start in the brain are called
primary brain tumors, and types that spread to the brain from other parts of
the body are called secondary or metastatic brain tumors. These tumors can occur at any age, and the
exact cause is still unknown. Openness to
radiation and family ancestry are the absolute most normal risk factors. Headache, tingling in the hands and feet, memory problems and balance
problems are the most common symptoms of a brain tumor. Astrocytoma, meningioma, and
oligodendroglioma are the most common primary brain tumors in adults and
Medulloblastomas, astrocytoma, and ependymomas in children. Treatment depends upon the stage, area, size, and kind of mind growth.
Therapy choices include a medical procedure, radiation treatment, and
chemotherapy.
Palliative care is important before, during, and after
cancer treatment to improve quality of life by reducing symptoms. What are the types of brain tumors?
Types of brain
tumors include:
1. Primary brain
tumors - tumors that originate in brain tissue. 1. Glial Brain
Tumor - a tumor originating from glial cells or non-neuronal cells in the
brain.
2. Non-glial brain
tumor - a tumor in the nerves, blood vessels, and glands of the
brain.
3. Benign brain
tumor - non-cancerous tumor.
4. Malignant brain
tumor - cancer in the brain.
2. Secondary or
metastatic brain tumors - tumors that start elsewhere in the
body and then spread to the brain.
PRIMARY BRAIN TUMORS:
1. Gangliocytoma - This is a rare tumor that originates
from mature nerve cells.
2. Meningioma - This accounts for about 10-15% of all brain tumors and is the most common
benign brain tumor. This tumor arises from the meninges, which are the
membranes surrounding the brain and spinal cord.
3.
Craniopharyngiomas - These tumors are difficult to remove
because of their location deep in the
brain because they come from the pituitary gland.
3. Pineocytomas - Tumors that arise
from the cells of the pineal gland are called pineocytomas. They are normally slow-developing and clear-cut.
4. Schwannomas - Primary brain tumors that arise from
Schwann cells, which are cells that help with nerve impulses, are called
schwannomas. Acoustic neuroma, which originates from the vestibulocochlear
nerve (the nerve between the brain and the ear), is the most common type.
5. Pituitary
Adenomas - These tumors arise from the pituitary gland, which is
located at the base of the brain. Since the pituitary gland controls most of
the hormones produced in the body, the effects of this tumor can be seen
throughout the body.
6. Gliomas - This represents almost 78% of all malignant brain tumors in adults. These tumors arise from cells in the brain or spinal cord called glia.
Types of glioma
include:
1. Ependymomas - When the ependymal cells lining the ventricular system become cancerous,
they produce ependymomas.
2. Glioblastoma multiforme (GBM) - Also called glioblastoma, this is the most invasive type of glioma. They
originate from stellate glial cells such as astrocytes and oligodendrocytes. GBM develops quickly and spreads to different tissues.
3. Astrocytomas - This is the most common glioma. They create
astrocytes, which are star-molded glial cells. They usually occur in the brain.
4. Brain stem
glioma - tumors that arise in the lower part of the brain.
5. Medulloblastomas - This is the most common brain tumor in children and originates in the
cerebellum (the lower back of the
brain).
6. Oligodendroglia
- These tumors arise from cells that produce myelin (the insulating layer of nerves in the brain
and spinal cord). Secondary brain tumors:
People who have
had cancer in any part of the body are prone to secondary brain tumors.
Secondary brain tumors are more common in adults than primary brain tumors.
Common types of
cancer that can cause a metastatic brain tumor include:
1. Breast cancer.
2. Lung cancer.
3. Melanoma.
4. Colon cancer.
5. Kidney cancer.
Other tumors that
can affect the brain:
1. Atypical teratoid rhabdoid tumors - These are highly invasive and rare tumors that spread throughout the
central nervous system. They occur in many parts of the body and are common in
young children.
2.
Hemangioblastomas - These tumors originate from blood vessels. What are the early signs and symptoms of a
brain tumor? Symptoms depend on the size, type, and location of the tumor.
Symptoms usually occur when a tumor presses on a nerve or part of the brain.
Common early signs
and symptoms include:
• A severe headache that usually
starts in the morning.
§The headache gradually becomes severe and frequent.
§ Nausea and vomiting.
§ Speech problems.
§ Visual changes.
§ Hearing difficulties.
§ Problems with balance and walking.
§ Change of personality.
§ Moods.
§ Inability to concentrate.
§ Memory problems.
§ Twitches.
§ Seizures.
§ Shivering or deadness in the hands or feet.
Don’t hesitate:
There are many
other diseases that can cause similar symptoms, so do not panic and visit your
doctor for a proper diagnosis.
Risk factors:
1. Radiation.
2. People with a family history of brain tumors are at risk.
How does a doctor
diagnose a brain tumor?
To diagnose a
brain tumor, a neurologist will first perform a physical exam and ask you in
detail about your symptoms. The doctor will perform a detailed neurological
examination and check that your cranial nerves are healthy. He can also check
your vision, muscle strength, memory, coordination and balance. In addition,
they may ask you to complete some of the following tests
1. X-ray - checks if the brain tumor has broken the bones of the skull. They also
have calcium deposits, which can occur in some types of tumors.
2. CT head - A CT scan of the brain helps the doctor
clearly see the blood vessels and other structures of the brain.
3. MRI of the head
- magnetic resonance
imaging of the head provides more detailed images of the brain.
4. Angiography - This involves injecting a dye that travels into the arteries of the
brain. This helps the doctor see the blood supply to the tumor.
5. Biopsy - The doctor collects a small piece of the brain tumor and examines the cells
under a microscope. This is done to determine if the tumor is benign or
malignant.
What are the
classes of brain tumors?
Your doctor will
evaluate your brain tumor based on how the cells look under the microscope:
1. Grade I - benign tissue - the cells look almost like
normal brain cells and proliferate slowly.
2. Grade II - malignant tissue - cells look less like
normal brain cells than grade I.
3. Grade III - Malignant tissue - The cells look very
different from normal brain cells.
4. Grade IV - Malignant tissue - these cells look
abnormal and multiply rapidly.
Grades I and II are second-rate growths, and
grades III and IV are high-grade cancers. In some cases, a low-grade tumor can become
high-grade over time.
Can a brain tumor be cured?
Treatment options
include:
a. Surgery If the tumor is well-defined and easily
accessible, the neurosurgeon will attempt to remove the entire brain tumor. But
if the tumor has irregular edges and cannot be distinguished from the
surrounding tissue, or if it is located in a sensitive area of the brain,
surgery is not recommended, or the surgeon tries to remove as much of the tumor
as possible safely. . .
b. Minimally invasive scar brain surgery Here, brain
surgery is performed through a small incision and special instruments, so there
is no need to cut large sections of the skull (craniotomy) to gain better
access. Removing the tumor using this method reduces the risk of serious
complications.
c. Chemotherapy Here, drugs are used to destroy tumor cells.
These drugs can be taken either orally or injected into a vein. Temozolomide is
the most common chemotherapy drug used to treat brain tumors.
d. Targeted treatment These drugs target and block specific
abnormalities in cancer cells. These actions kill cancer cells.
e. Radiation therapy
Here, high-energy
rays such as X-rays or protons are used to destroy tumor cells. Two types of
radiation therapy are used:
·
External beam radiation - when the radiation used in the treatment comes from a machine outside the body.
·
Brachytherapy - Here the radiation source is placed in the body and near the tumor.
Headache, fatigue, and memory loss are common side effects of radiation therapy.
6) Radiosurgery: Contrary to what the name suggests, it is not a type of surgery, but
radiosurgery is the use of multiple beams of radiation to destroy tumor cells
in a small area.
The types of
radiosurgery used to treat brain tumors are Gamma Knife or Linear Accelerator.
Rehabilitation:
Because brain
tumors can affect motor skills, vision, speech and thinking, rehabilitation is
essential for a full recovery. Depending on your needs, your doctor may
recommend physical therapy to restore lost motor skills, occupational therapy
to help you return to a normal routine after brain surgery, and speech therapy
to treat speech difficulties.
The prognosis for a brain tumor depends on your general
health and the size, location, and type of the tumor. Early
detection and treatment can forestall serious difficulties. So, if you
have symptoms of a brain tumor, be sure to contact your doctor online by phone
or video call.
The above article is an informative one and not a
Specialist consultant's view. Always consult a specialist for expert opinion.
