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Understanding Brain Tumors: Symptoms, Diagnosis and Treatment Options
Understanding the symptoms, diagnostic procedures, and available treatment options can help patients and families make informed decisions. Early medical evaluation is important when persistent or unusual neurological symptoms develop.
What Is a Brain Tumor?
A brain tumor develops when abnormal cells grow uncontrollably within the brain or nearby structures. Primary brain tumors begin in the brain, whereas secondary brain tumors, also known as brain metastases, spread to the brain from cancer elsewhere in the body.
Brain tumors are classified according to their cell type, location, and biological behaviour. Some grow slowly, while others may grow more aggressively. A tumor’s effects depend on its size, growth pattern, and the part of the brain it affects.
Common Symptoms of Brain Tumors
Brain tumor symptoms can vary considerably between individuals. Some symptoms develop gradually, while others may appear more suddenly. Common signs include:
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Persistent or worsening headaches: Headaches may become more frequent or severe, although most headaches are not caused by brain tumors.
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Seizures: A seizure may be one of the first signs of a brain tumor in some patients.
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Vision changes: Blurred vision, double vision, or difficulty seeing may occur.
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Nausea and vomiting: These symptoms may occur alongside increased pressure inside the skull.
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Memory or concentration difficulties: Some patients experience changes in thinking, memory, or behaviour.
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Weakness or numbness: Changes affecting movement or sensation may develop in particular parts of the body.
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Speech or balance problems: Difficulty speaking, walking, or maintaining coordination may occur depending on the tumor’s location.
How Are Brain Tumors Diagnosed?
Accurate diagnosis helps doctors understand the tumor’s type, location, and extent. The evaluation may involve several steps.
Neurological examination: A doctor may assess muscle strength, reflexes, coordination, vision, hearing, balance, and cognitive function.
Imaging tests: Magnetic resonance imaging (MRI) is commonly used to examine the brain in detail. Computed tomography (CT) may also be performed, particularly in emergencies or when additional assessment is needed.
Biopsy and laboratory analysis: In selected cases, a tissue sample is obtained through surgery or a biopsy procedure. Examination of the sample helps identify the tumor type and may include molecular testing to guide treatment.
The appropriate investigations depend on the patient’s symptoms, medical history, and initial findings.
Treatment Options for Brain Tumors
Treatment is individualized according to the tumor type, location, size, growth rate, symptoms, and the patient’s overall health.
1. Monitoring: Some slow-growing tumors may be monitored with regular examinations and imaging when immediate treatment is not necessary.
2. Surgery: Surgery may be recommended to remove as much of the tumor as safely possible, obtain tissue for diagnosis, or relieve pressure on surrounding brain structures.
3. Radiation therapy: Radiation uses carefully planned energy beams to target tumor cells. It may be recommended after surgery or as an alternative in selected cases.
4. Chemotherapy and targeted treatments: Certain medicines may destroy tumor cells or interfere with specific processes that help them grow. The choice depends on the tumor’s characteristics.
5. Rehabilitation and supportive care: Physiotherapy, speech therapy, occupational therapy, and symptom management may help patients maintain or regain daily functioning.