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.</p> Signup and view all the answers

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

    <p>Hydrocephalus</p> Signup and view all the answers

    What is the main focus when classifying brain tumours?

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

    What can directly contribute to the development of hydrocephalus?

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

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

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

    What is a common pathway leading to hydrocephalus?

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

    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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    Description

    This quiz provides essential information on brain tumours, including their prevalence in the overall spectrum of cancers. Discover the significance of brain tumours within the nervous system and their impact on health.

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