A tumour is a lump or growth that forms when abnormal cells start multiplying in the body. This happens when the genes that control cell growth and division stop working properly, leading to uncontrolled cell growth.
Tumours can occur in any part of the body, including the brain and spinal cord, which together form the Central Nervous System (CNS). However, it is important to note that not all tumours are cancerous—some are benign and grow slowly, while others are malignant and can spread or invade nearby tissues.
In this article, we will explore brain tumours in detail—covering their types, symptoms, causes, and available treatment options. But before we delve deeper into the brain tumour symptoms and types, let's understand benign and malignant tumours.
Understanding the Difference Between Benign and Malignant
As discussed above, not all tumours are cancerous; such tumours are classified as benign. Although the benign tumour does not spread to other parts of the body, it may still cause problems if it presses on sensitive areas of the brain.
A malignant brain tumour, on the other hand, is cancerous. It grows aggressively and may spread into nearby tissues. These growths are more difficult to treat. The symptoms may not appear until the tumour becomes large enough to affect brain function.
Types Of Brain Tumours
Here are two common types of brain tumours:
A. Primary Tumours
Primary tumours begin in the brain or the spinal cord. These tumours can be benign or malignant and can arise from different cell types, such as glial cells (non-neuronal cells in the nervous system that support and protect neurons), the meninges (a protective layer that shields the brain and spinal cord), or the pituitary gland. They are often named after the type of cells they come from. For instance, glioblastomas are a type of brain tumour that originates in astrocytes, a type of glial cell. Similarly, pituitary adenomas that develop in the pituitary gland.
B. Secondary (Metastatic) Tumours
Secondary brain tumours originate in other organs, such as the lungs or breasts, and spread to the brain. These tumours are always cancerous and usually signal advanced disease.
Brain Tumours Symptoms
Although the brain tumour symptoms may vary depending on its type, size, and location, there are some common signs. Here are some early signs of a brain tumour
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• Headaches
Headaches are a common symptom. They may worsen in the morning or get worse with coughing or movement.
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• Seizures
Seizures may occur in people with no prior history of epilepsy. A tumour may irritate brain cells and trigger abnormal electrical activity.
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• Cognitive Changes
Cognitive changes include memory loss, confusion, and trouble concentrating. These may progress over time.
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• Motor Symptoms
Motor Symptoms include weakness, numbness, or paralysis on one side of the body. This often points to tumours near motor control areas.
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• Vision Or Hearing Issues
They develop when tumours affect the nerves related to these senses. Double vision or hearing loss may be early signs.
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• Speech Difficulties
Speech difficulties [such as trouble forming words or understanding language] can arise if the tumour involves the brain’s language centres.
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• Personality Changes
Personality changes [such as mood swings, aggression, or apathy] can occur with tumours in the frontal lobe.
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• Nausea And Vomiting
It happens when pressure builds up inside the skull. This is more common in large or fast-growing tumours.
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• Balance And Coordination Problems
They may appear when the cerebellum is affected. Walking and fine movements may become difficult.
Causes And Risk Factors
Here are some risk factors that may increase the chances of developing a brain tumour:
- • Genetic Mutations in the DNA of brain cells may lead to uncontrolled growth. These changes can be spontaneous or inherited.
- • Inherited syndromes like neurofibromatosis, tuberous sclerosis, and Li-Fraumeni syndrome are linked to higher tumour risk. These are rare but well-documented.
- • Radiation exposure, especially from previous cancer treatment or high-dose environmental sources, may raise the risk of brain tumour development.
- • Age and gender also play a role. Some tumours are more common in older adults, while others appear more frequently in children. Meningiomas are more common in females.
- • Immune system disorders may also contribute. People with weakened immunity may be more vulnerable to certain brain tumours.
Diagnosis Of Brain Tumours
Diagnosing a brain tumour typically follows a systematic process, beginning with symptom assessment and proceeding through a sequence of specialised neurological exams, imaging tests, biopsies, and laboratory analyses. Here's a breakdown of brain tumour diagnosis:
- • A neurological exam checks reflexes, strength, coordination, and senses. Any abnormalities may suggest brain involvement.
- • Imaging tests such as MRI and CT scans help locate and identify tumours. MRI gives more detailed images, especially of soft tissues.
- • A biopsy confirms the tumour type. A small sample of tissue is removed and examined under a microscope to determine whether it is cancerous.
- • Genetic testing may be used to study mutations in the tumour. This helps guide personalised treatment plans and predict behaviour.
Treatment Options For Brain Tumours
Treatment depends on tumour type, size, location, and patient health. Most plans involve a combination of therapies.
- • Surgery is often the first step after the diagnosis. Brain tumour surgery aims to remove as much of the tumour as possible without damaging healthy tissue. However, depending on the stage of the cancer, the treatment options may vary.
- • Depending on the stage of cancer, your oncologist may recommend chemotherapy and radiation therapy. For the unversed, chemotherapy uses drugs to kill cancer cells or stop them from dividing. It is usually given in cycles and may be combined with radiation. On the other hand, radiation uses focused beams to destroy cancer cells. It may be used after surgery or as a standalone treatment.
- • Targeted Therapy attacks specific molecules that help tumours grow. This reduces damage to healthy cells.
- • Immunotherapy stimulates the body’s immune system to fight the tumour. It is a growing area of research and may benefit some patients.
Prognosis And Outlook
Like any form of cancer, the outlook and survival rates for brain tumours can vary depending on several factors, including the type of tumour, its location, and how early it is diagnosed. In general, benign tumours tend to have a better prognosis than malignant tumours. However, every case is unique, and statistics can’t capture an individual’s journey or response to treatment. Your oncologist is the best person to help you understand your specific situation and what to expect moving forward.
Conclusion
A brain tumour can be a life-changing diagnosis, but early detection, accurate diagnosis, and timely treatment can significantly improve outcomes. Advances in imaging, surgery, and targeted therapies have improved both survival rates and quality of life for many patients.
If you or a loved one is experiencing symptoms such as persistent headaches, vision changes, or unexplained balance issues, it’s important to seek medical advice promptly.
FAQs
1. What is a brain tumour?
It is an abnormal growth of cells in or around the brain that can disrupt normal function.
2. Are all brain tumours cancerous?
No. Some are benign and grow slowly. Others are malignant and spread quickly.
3. What are the common symptoms of a brain tumour?
The most common symptoms include headaches, seizures, cognitive changes, motor weakness, and vision or speech problems.
4. How are brain tumours diagnosed?
Through a neurological exam, imaging tests like MRI, and sometimes a biopsy or genetic testing.
5. What causes brain tumours?
They are usually caused by gene changes. Some are linked to inherited syndromes or radiation exposure.
6. What are the treatment options for brain tumours?
Treatment includes brain tumour surgery, radiation therapy, chemotherapy, targeted therapy, and supportive care.
7. What is the prognosis for someone with a brain tumour?
Prognosis varies by tumour type and treatment response. Early diagnosis often improves outcomes.
8. Which is the best hospital in Dubai for brain tumour surgery with advanced neurosurgeons?
The best neurosurgery hospital in Dubai for expert care and advanced brain tumour treatment is Aster Hospital [known for its skilled team and state-of-the-art facilities].