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Anterior clinoidal meningioma coincidental with bilateral intracranial aneurysms

D Paraskevopoulos1, I Magras1, I Balogiannis1

  • 11st Department of Neurosurgery, Aristotle University of Thessaloniki, AHEPA University Hospital, St. Kyriakidi 1, 54636, Thessaloniki, Greece.

Hippokratia
|January 7, 2014
PubMed

Insights

Brain tumors and aneurysms rarely coexist, especially meningiomas. A case highlights diagnostic challenges and surgical planning issues when aneurysms are hidden by tumors, like a middle cerebral artery (MCA) and anterior cerebral artery (ACA) aneurysm.

Area of Science:

  • Neurosurgery
  • Neuroradiology
  • Neuropathology

Background:

  • The simultaneous occurrence of cerebral aneurysms and brain tumors is uncommon.
  • Meningiomas represent the most frequent brain tumors associated with aneurysms.

Observation:

  • A case involving a meningioma of the left anterior clinoid process coexisting with both a right middle cerebral artery (MCA) aneurysm and a left anterior cerebral artery (ACA) aneurysm is presented.
  • The right MCA aneurysm was identified preoperatively, whereas the left ACA aneurysm remained undetected due to concealment by the primary meningioma.

Findings:

  • This scenario underscores potential diagnostic pitfalls in neuroimaging when a significant tumor mass obscures other vascular abnormalities.
  • The presence of a meningioma can mask associated aneurysms, leading to delayed or missed diagnoses.

Implications:

  • Accurate preoperative diagnosis is crucial for effective surgical planning in cases of coexisting brain tumors and aneurysms.
  • Radiologists and neurosurgeons must maintain a high index of suspicion for associated vascular lesions, even when a dominant tumor is evident.
Keywords:
anterior clinoid processintracranial aneurysmmeningioma

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