Intraventricular meningiomas: A case series and literature review.

Abstract

Objective: Intraventricular meningiomas (IVMs) are rare type of meningiomas. Majority of IVMs are located in lateral ventricles. Study Design: Case Series. Setting: Civil Hospital Karachi. Period: January 2013 to January 2018. Material & Methods: 15 patients were assessed with histologically verified IVMs, clinical features, radiological findings, surgical approaches, outcome and literature review. Results: The most common presentations included raised intracranial pressure (66.7%), visual deficits (40%), cognitive changes and dysphasia. All lesions arose in the lateral ventricles. Preoperative diagnosis was confirmed on MRI. Excision was performed using the posterior parietal and parieto-temporal approach for lateral ventricle tumors. Total excision was done in 13 out of 15 patients and two patients with residual tumor underwent stereotactic radiosurgery. Biopsy report showed WHO grade-I lesion in all cases. Postoperative complications included CSF leakage, transient hemiparesis and dysphasia. Glasgow Outcome Score of 5 was found in majority of cases (87%) on follow-up. Conclusion: These results depict that IVMs can be excised completely with minimum postoperative morbidity. However, resection requires planning to avoid eloquent cortical damage.