QuestionSBA
QuestionChoice
A subarachnoid haemorrhage occurs in the subarachnoid space, the area between the arachnoid mater and the pia mater. It is often caused by the rupture of an aneurysm. The hallmark symptom of SAH is a sudden, severe headache, often described as "the worst headache of my life." It is characterised by the presence of blood in the subarachnoid space on a CT scan.
10026652
c
Subarachnoid haemorrhage
QuestionChoice
Extradural haemorrhage occurs between the skill and the dura mater. It typically results from head trauma, which damages the middle meningeal artery. It shows as a biconvex/lens-shaped collection of blood on CT scan.
10026651
b
Extradural haemorrhage
QuestionChoice
A subdural haemorrhage occurs between the dura mater and the arachnoid mater. It is often the result of head trauma. The trauma causes the bridging veins to rupture, leading to bleeding in the space between the dura and the arachnoid mater. Symptoms include headache, altered mental status, confusion, drowsiness, weakness, seizures, and focal neurological deficits. A crescent-shaped collection of blood is a characteristic sign on CT.
10026650
a
Subdural haemorrhage
QuestionChoice
Intracerebral haemorrhage occurs within the brain tissue itself, leading to the accumulation of blood in the brain. Intracerebral haemorrhage is most commonly caused by the rupture of small blood vessels (typically small arteries) within the brain. Hypertension is a major risk factor. A CT scan will show a collection of blood within the brain parenchyma.
10026653
d
Intracerebral haemorrhage
QuestionChoice
Ischaemic strokes are the most common type of stroke and are typically caused by a blockage or clot in a blood vessel that supplies blood to the brain. It is not caused by head trauma. Ischaemic strokes typically present as areas of hypo-density on a CT scan.
10026654
e
Ischaemic Stroke
Concept
Chapter
2693
4017
Subdural haemorrhage
Topic
141
Neurology
17728
A 72-year-old male patient is brought to A&E by his wife who is concerned that he has been unsteady, drowsy and confused. He has reduced consciousness. His wife notes that he fell over six weeks ago, but seemed fine. His CT head shows a crescent-shaped collection of blood in the right hemisphere.

What is the diagnosis?
a