Subarachnoid haemorrhage - traumatic
Fall from a height. Injury to the head.
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Plain axial CT scan reveals areas of blood density noted in the subarachnoid spaces involving the sulcal spaces, Sylvian fissures and all basal cisterns bilaterally.
This is suggestive of a subarachnoid haemorrhage.
Another area of blood density noted in the left inferior frontal region suggestive of a contusion.
This is a coup-contrecoup injury.
Bone window reveals a fracture of the right parieto-occiptal bone with a subgaleal haematoma surrounding it. Subgaleal haematoma also noted in the left temporal region.
2 case question available
The differential diagnosis for high density in the subarachnoid space beside subarachnoid haemorrhage (most common) is:
- Pyogenic leptomeningitis
- Leakage of intravenous contrast into the basilar cisterns
- CT Detection of Intracranial Aneurysms in Subarachnoid Hemorrhage K. GHOSHHAJRA,’ L. SCOTTI,2 J. MARASCO,2 AND P. BAGHAI-NAIINI3