3. How does a space-occupying lesion produce raised intracranial pressure?
Correct answer: A space-occupying lesion within the skull produces raised intracranial pressure not only by its actual volume within the closed box of the cranium but also by provoking oedema, and sometimes by impeding the circulation or absorption of cerebrospinal…
2. How does a space-occupying lesion manifest itself?
Correct answer: By the general features of raised intracranial pressure and by localizing signs.
1. What are the five main causes of a space-occupying intracranial lesion?
Correct answer: (1) Haemorrhage(a) extradural;(b) subdural, acute or chronic;(c) intracerebral. (2) Tumour.(3) Hydrocephalus.(4) Brain swelling (oedema), e.g. head injury, encephalitis.(5) Cerebral abscess. Other causes are rare and include hydatid cysts, tuberculoma and gumma.
