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Posterior fossa meningiomas. A report of 30 cases
Abstract:
The clinical symptoms of thirty patients with surgically treated posterior fossa meningiomas were reviewed. These included 16 cerebellopontine (CPA), 7 cerebellar, 4 carrefour-falco-tentorial (CFT), 2 foramen magnum, and 1 clivus meningiomas. Careful attention to clinical findings is necessary in diagnosing these tumors. With rare exception they have an insidious onset and even after having reached considerable size, the ensuing neurological abnormalities might not be revealing. On occasion there are false localizing neurological findings. Neuroradiological localization is essential to obtain accurate diagnosis and to plan the best operative approach. Radioactive brain scanning offers the best screening method. Although air studies remain useful, angiography of vessels of the posterior foss is assuming a dominant role in diagnosis and surgical planning.
Insights
Diagnosing posterior fossa meningiomas requires careful clinical evaluation due to insidious onset and potential for false localizing signs. Neuroradiological imaging is essential for accurate diagnosis and surgical planning.
Area of Science:
- Neurosurgery
- Neurology
- Neuroradiology
Background:
- Posterior fossa meningiomas are tumors that can present with subtle or misleading clinical symptoms.
- Accurate diagnosis and surgical planning are crucial for effective patient management.
Purpose of the Study:
- To review the clinical symptoms of patients with surgically treated posterior fossa meningiomas.
- To emphasize the importance of clinical findings and neuroradiological localization.
Main Methods:
- Retrospective review of clinical symptoms in thirty surgically treated posterior fossa meningioma patients.
- Analysis of tumor locations including cerebellopontine angle (CPA), cerebellar, carrefour-falco-tentorial (CFT), foramen magnum, and clivus.
Main Results:
- Posterior fossa meningiomas often have an insidious onset with neurological abnormalities that may not be immediately revealing.
- False localizing neurological signs can occur, complicating diagnosis.
- Neuroradiological localization is vital for accurate diagnosis and surgical approach planning.
Conclusions:
- Clinical vigilance is necessary for diagnosing posterior fossa meningiomas.
- Radioactive brain scanning is an effective screening method.
- Angiography plays a dominant role in diagnosis and surgical planning for posterior fossa tumors.