Cerebral amyloid angiopathy as cause of convexity SAH in elderly

Neurologist. 2010 Jan;16(1):37-40. doi: 10.1097/NRL.0b013e3181963f0c.


Background: Spontaneous convexity SAH in the elderly has heretofore been of uncertain origin until several recent case reports have suggested cerebral amyloid angiopathy (CAA) as the etiology.

Objective: To better appreciate the relationship of convexity SAH in the elderly to CAA.

Method: The case histories and MR imaging findings of 4 patients with spontaneous convexity SAH were examined.

Results: T2*-weighted imaging at the time of symptomatic SAH demonstrated features of prior lobar hemorrhage, microbleeds, and/or superficial hemosiderosis fulfilling diagnostic criteria of CAA in all patients.

Conclusions: CAA may be the foremost cause of convexity SAH in the elderly.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Aged, 80 and over
  • Brain / pathology
  • Cerebral Amyloid Angiopathy / complications*
  • Cerebral Amyloid Angiopathy / pathology
  • Female
  • Humans
  • Magnetic Resonance Imaging
  • Male
  • Subarachnoid Hemorrhage / etiology*
  • Subarachnoid Hemorrhage / pathology