Brain Tumours Overview

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Questions and Answers

What is a key characteristic that differentiates brain tumours from other types of tumours in the body?

  • Brain tumours usually result in increased intracranial pressure. (correct)
  • Brain tumours are primarily caused by genetic mutations.
  • Brain tumours are significantly more common than other cancers.
  • Brain tumours often arise from non-neural tissue.

What percentage of all cancers are classified as brain tumours?

  • 20%
  • 10%
  • 2% (correct)
  • 5%

Which of the following best describes the condition of localised cerebral oedema?

  • An accumulation of cerebrospinal fluid causing increased pressure.
  • A uniform swelling of brain tissue across both hemispheres.
  • Swelling of brain tissue in specific areas, often due to injury or tumour. (correct)
  • A chronic condition leading to gradual degenerative changes in brain tissue.

What are the potential consequences of raised intracranial pressure?

<p>Decreased cerebral perfusion and possible brain herniation. (D)</p> Signup and view all the answers

Which condition can result from the abnormal accumulation of water in the brain?

<p>Hydrocephalus (B)</p> Signup and view all the answers

What is the main focus when classifying brain tumours?

<p>Their biological behaviour and characteristics (D)</p> Signup and view all the answers

How do brain tumours typically respond to treatment compared to other types of tumours?

<p>They often have a more unpredictable response due to their complex biology (C)</p> Signup and view all the answers

What can directly contribute to the development of hydrocephalus?

<p>Obstruction of cerebrospinal fluid pathways (A)</p> Signup and view all the answers

What is a significant consequence of localized cerebral oedema?

<p>Necrosis of brain tissue due to pressure buildup (B)</p> Signup and view all the answers

Which of the following factors can significantly influence the biological behaviour of brain tumours?

<p>The specific type of brain cells involved (D)</p> Signup and view all the answers

What aspect of brain tumours contributes to their distinct classification compared to other tumours?

<p>The site of origin within the brain (B)</p> Signup and view all the answers

What characterizes the biological behaviour of brain tumours compared to peripheral cancers?

<p>Limited treatment responses due to the blood-brain barrier (A)</p> Signup and view all the answers

Which of the following explains a significant consequence of raised intracranial pressure?

<p>Decreased cerebral blood flow (A)</p> Signup and view all the answers

What is a common pathway leading to hydrocephalus?

<p>Obstruction of cerebrospinal fluid pathways (A)</p> Signup and view all the answers

What physiological mechanism is involved in the pathophysiology of abnormal water accumulation in the brain?

<p>Disruption of the blood-brain barrier (D)</p> Signup and view all the answers

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Study Notes

Brain Tumours

  • Brain tumours represent 2% of all cancers
  • Brain Tumours represent 20% of cancers in the nervous system

Brain Tumours

  • Brain tumours account for 2% of all cancers.
  • Brain tumours account for 20% of cancers that occur in the central nervous system.

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