Brain Tumor – Types, Symptoms, and Causes

Our own brains are the seat of all we have been. Every thought and action all of us perform is an output of our mind. So understandably the thought of an affliction striking the brain can be terrifying.

Brain cancer is a rare but damaging form of cancer accounting for 2% of all cancer cases worldwide. Human brain cancer refers to the abnormal growth and division of cells within the brain. Brain tumours can be either benign or cancerous and malignant brain tumours are further separated into primary brain tumours that start in the brain and secondary tumours that will start elsewhere in the body and spread (metastasize) to the brain.

Whether harmless or a malignant tumour can boost the volume of the brain which creates stress in the tight skull space. The particular bony skull is extremely hard plus rigid. Any encroachment in this tight space increases intracranial pressure which can lead to brain damage, coma, as well as death.

Types Of Brain Tumours

The very first major classification of types of brain tumours is benign and cancerous tumours. Benign brain tumours are the least aggressive and slowest developing tumours. They do not have cancerous cellular material and have a good prognosis after treatment.

Malignant or cancerous brain tumours arise from brain cells, encouraging cells, and other tissue found in and round the brain. These are high-grade tumours. Grading for tumours involves rating a growth on a scale of 1 to 4 with low-grade scores being 1 and 2, and 3 and 4 are high grade.
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Benign tumours are low grade which is slow growing, contained, less likely to distribute, and unlikely to return after removal. On the other hand, malignant or cancerous tumours are high grade which means they are quick growing, spread to surrounding tissues, and are more likely to return after elimination.

Cancerous tumours are further divided into primary and secondary tumours.

Primary cancerous tumours originate within the brain itself while secondary tumours are a result of metastasis from tumours in other organ systems, commonly in the lungs.

Primary tumours are rarer and the most common types of primary brain tumours are gliomas and meningiomas. Gliomas affect the glial cells which are supportive cells in the brain that offer nourishment and structural support to neurons. Gliomas account for 50% of most primary brain tumours.

Symptoms Of Brain Tumours

The brain is a large plus complicated organ. Symptoms of brain tumours depend on the size, type, and area of a tumour. Some common signs and symptoms are:

Headaches, typically worse in the morning and progressively worsening over time.
Consistent nausea
Persistent vomiting
Dizziness
Intensifying body weakness
Fatigue
Unexplained weight loss
Behavioural or mood changes
Vision problems
Confusion and memory disability
Specific symptoms depend on the size of a tumour and its location. Based on this particular, some of the signs and symptoms that may be noticed are:
Personality changes, less inhibition, poor judgement, etc . in frontal lobe tumours
Language difficulties, poor memory, and hearing problems in temporal lobe tumours
Sensory disturbances, intensifying muscle weakness, etc . In parietal lobe tumours
Visual disturbances or loss of vision in occipital lobe tumours.
Loss of balance and coordination in cerebellar tumours.
Changes in respiration, blood pressure, and heartbeat in brain stem tumours

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