Convexal subarachnoid hemorrhage

Convexal subarachnoid hemorrhages (cSAH) are non-traumatic intracranial hemorrhages that occur within the surface sulci of the brain (cf. basal cisternal distribution of aneurysmal SAH).


There are various causes of convexal subarachnoid hemorrhage, some of which include:

Differential diagnosis

Stroke and intracranial haemorrhage

Article information

rID: 44019
Section: Gamuts
Synonyms or Alternate Spellings:
  • Convexal SAH
  • Convexity SAH
  • Convexity subarachnoid haemorrhage
  • Cortical SAH
  • Cortical subarachnoid haemorrhage
  • cSAH

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Cases and figures

  • Case 1: RCVS
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  • Case 2: RCVS
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  • Case 3: mycotic aneurysm
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  • Case 4: in ischemic stroke secondary to ICA occlusion
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