QuestionSBA
QuestionChoice
This would present with the sudden onset thunderclap headache. On CT scan, this would appear as hyperdensity in the subarachnoid space including the ventricles and cerebral cortical lining.
10003039
d
Subarachnoid haemorrhage
QuestionChoice
The presentation of the patient is suggestive of a chronic subdural haemorrhage. On a CT scan, this appears as a hypodense crescent-shaped lesion which extends across the sutures of the skull. Sometimes, there may be mass effect causing midline shift or sulcal effacement.
10003036
a
Subdural haemorrhage
QuestionChoice
This would present more acutely, especially after trauma. On a CT scan, this would appear as a hyperdense lentiform or lemon-shaped hyperdense lesion, not crossing the skull sutures.
10003037
b
Extradural haemorrhage
QuestionChoice
Ischaemic stroke can be a differential diagnosis, given the patient's presentation. On CT scan, a chronic ischaemic stroke would appear as a hypodense lesion in the cerebral cortex, with associated mass effect.
10003038
c
Ischaemic stroke
QuestionChoice
This refers to an intracerebral haemorrhage and would present more acutely with stroke-like symptoms. On a CT scan, this would appear as a hyperdense collection in the cerebral cortex with surrounding hypodense oedema.
10003040
e
Intraparenchymal haemorrhage
Concept
Chapter
2693
4017
Subdural haemorrhage
Topic
141
Neurology
13154
A 70-year-old male is brought into A&E by his wife due to behavioural changes observed for the last 1 month. This was preceded by a fall down the stairs. The patient appears to have slurred speech and also complains of dull headache and appears confused.

He has a past medical history of hypertension and atrial fibrillation, for which he takes ramipril and warfarin.

A CT scan of his head shows a left-sided crescent-shaped hypodense lesion crossing the sutures of the skull. What is the most likely type of pathology?
a