Disease or Syndrome
intracranial aneurysm
in·tra·cra·ni·al an·eu·rysm
Subclass of:
Intracranial Arterial Diseases; Aneurysm
Definitions related to intracranial aneurysm:
  • A congenital or acquired aneurysm within the cranium.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • Abnormal outpouching in the wall of intracranial blood vessels. Most common are the saccular (berry) aneurysms located at branch points in CIRCLE OF WILLIS at the base of the brain. Vessel rupture results in SUBARACHNOID HEMORRHAGE or INTRACRANIAL HEMORRHAGES. Giant aneurysms (>2.5 cm in diameter) may compress adjacent structures, including the OCULOMOTOR NERVE. (From Adams et al., Principles of Neurology, 6th ed, p841)
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
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