Subarachnoid hemorrhage

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CT
MRI FLAIR
MRI GRE


Pattern of hemorrhage may indicate location of cerebral aneurysm

  • ACOMM - interhemispheric fissure
  • PCOMM - ipsilateral basilar cistern
  • MCA Trifurcation - sylvian fissure
  • Basilar Tip - interpeduncular fossa, intraventricular
  • PICA - posterior fossa cisterns, intraventricular