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Trigone ventricular meningiomas: surgical approaches
Marco Antonio Zanini1, Antonio Tadeu Souza Faleiros, Carlos Roberto Almeida
1Division of Neurosurgery, Botucatu, São Paulo State University, Botucatu, SP, Brazil. mzanini@fmb.unesp.br
Arquivos De Neuro-Psiquiatria
|August 31, 2011
Summary
Microsurgical resection of trigone ventricular meningiomas can achieve total tumor removal with low morbidity. Careful surgical planning and precise techniques are key for successful outcomes in treating these rare brain tumors.
Area of Science:
- Neurosurgery
- Neuropathology
Background:
- Meningiomas of the trigone of the lateral ventricles are rare intracranial tumors.
- Surgical management requires specialized knowledge of neuroanatomy and microsurgical techniques.
Purpose of the Study:
- To report surgical experience with trigone ventricular meningiomas.
- To review and analyze various surgical approaches to the trigone.
Main Methods:
- Retrospective analysis of six patients with trigone meningiomas treated between 1989 and 2006.
- Evaluation of clinical features, imaging, follow-up data, and surgical approaches used for microsurgical resection.
Main Results:
- Tumor volumes varied, with five large and one small meningioma.
- Presenting symptoms included nonspecific complaints, intracranial hypertension, homonymous hemianopsia, and motor deficits.
- Surgical approaches included transparietal transcortical, middle temporal gyrus, and parieto-occipital interhemispheric precuneus routes.
- Complete tumor resection was achieved in all patients without new neurological deficits.
Conclusions:
- Complete resection of trigone meningiomas is achievable with low morbidity.
- Judicious preoperative planning, anatomical knowledge, and appropriate microsurgical techniques are crucial for successful outcomes.
