QuestionSBA
QuestionChoice
There is nothing to suggest a stroke at present with no localising hemiparesis, no slurred speech and no higher dysfunction e.g. dysphasia.
10034990
d
Middle cerebral artery stroke
QuestionChoice
This would likely present with severe thunderclap headache and CT appearance would show widespread blood in subarachnoid space and basal cisterns.
10034989
c
Subarachnoid haemorrhage.
QuestionChoice
This is correct. The history of head trauma with subsequent lucid interval, headache, confusion and vomiting as well as the CT appearance of a bi-convex bleed limited by sutures.
10034987
a
Extradural haemorrhage
QuestionChoice
This is unlikely to cause so profound a presentation and would not cause the CT changes seen.
10034991
e
Concussion
QuestionChoice
This tends to occur in elderly patients, especially those with alcohol dependence issues and has a different crescentic lentiform appearance on CT Head with often a longer clinical history.
10034988
b
Subdural haemorrhage
Concept
Chapter
2693
6115
Extradural haemorrhage
Topic
334
Clinical Imaging
19401
Extradural haemorrhage often presents with a lucid interval following head trauma, headache, confusion, and characteristic bi-convex CT findings.
Picture
https://commons.wikimedia.org/wiki/File:Epidurales_Haematom.jpg
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Topic
334
Clinical Imaging
A 25-year-old man is brought to the emergency department by ambulance after a head injury, after which he became unconscious. At present he is conscious and confused, complaining of nausea and headache. A CT head is performed:

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What is the likely diagnosis?
a