Complete asymptomatic thrombosis and resorption of a congenital giant intracranial aneurysm

J Neurosurg. 2002 Jul;97(1):184-9. doi: 10.3171/jns.2002.97.1.0184.


Intracranial aneurysms in infants are rare, but are associated with a high risk of rupture and subarachnoid hemorrhage. The authors report a case of an incidentally diagnosed, probably congenital, asymptomatic giant aneurysm of the posterior communicating artery in a 9-month-old girl, which completely thrombosed following a diagnostic superselective angiography without any neuropathological incident. Follow-up magnetic resonance imaging revealed that the aneurysm decreased further in size and was largely resorbed within 3 years after the initial finding. In single cases the natural history of congenital giant aneurysms may be better than previously assumed.

Publication types

  • Case Reports

MeSH terms

  • Cerebral Angiography
  • Female
  • Humans
  • Infant
  • Intracranial Aneurysm / congenital
  • Intracranial Aneurysm / diagnostic imaging
  • Intracranial Aneurysm / pathology*
  • Intracranial Thrombosis / diagnostic imaging
  • Intracranial Thrombosis / pathology*
  • Magnetic Resonance Imaging
  • Remission, Spontaneous
  • Ultrasonography, Doppler, Duplex