intracranial mycotic aneurysm

• 3% of all intracranial aneurysms; multiple in 20%

• source:
  • subacute bacterial endocarditis (65%)
  • acute bacterial endocarditis (9%)
  • menigitis (9%)
  • septic thrombophlebitis (9%)
  • myxoma

• location:
  • peripheral to first bifurcation of major vessel (64%)
  • often near the surface of brain (esp. over convexities)