cctpat2

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H: Adult man, 22-years-old, blow to the head about half an hour ago. Headache. No concussion at any time.

INFO/WWW-LINKS: Fresh blood is high density compared with brain on CT and, at brain windows, appears white. As the clot absorbs, the lesion becomes isodens (2-3 weeks after bleeding) and, later, of low attenuation
Sites of intracranial heamorrhage/haematoma:
1) Between inner tabel and dura = extradural heamorrhage/haematoma
2) Between dura and arachnoid = subdural heamorrhage/haematoma
3) Between arachnoid and brain surface = subarachnoid heamorrhage/haematoma
4) Within brain = intracerebral heamorrhage/haematoma
5) Within ventricles = intraventricular heamorrhage/haematoma

D: At brain windows evidence of a small acute left-sided frontoparietal subdural haematoma with typical crescentic shape.

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