Intraventricular meningiomas


Erman T. , GOCER A. İ. , ERDOGAN E., BOYAR B. , HACRYAKUPOKLU S., ZORLUDEMIR S.

NEUROSURGERY QUARTERLY, cilt.14, ss.154-160, 2004 (SCI İndekslerine Giren Dergi) identifier identifier

Özet

Intraventricular meningiomas are rare tumors, comprising only 0.5% to 5% of all intracranial meningiomas. In this article, 8 cases of histopathologically proven intraventricular meningioma that were treated at the Qukurova University Neurosurgery Department are discussed. The radiologic, histologic, and clinical findings of intraventricular meningiomas and the surgical approach to lateral intraventricular meningiomas were reviewed retrospectively. Our 8 patients ranged in age from 18 to 65 years (mean = 44.6 years). Two patients were male and 6 were female, for a 1:3 male-to-female ratio. Computed tomography and magnetic resonance imaging demonstrated the 7 tumors within the lateral ventricle and only 1 tumor within the third ventricle. All lateral ventricular tumors were located in the region of the trigone. Headache and hemiparesis were the most common presenting symptoms. Histologic studies revealed meningo-theliomatous meningiomas in 5 patients, transitional meningioma in 2 patients, and anaplastic (malignant) meningioma in 1 patient. The superior parieto-occipital approach in 5 patients, posterior middle temporal gyrus approach in 2 patients, and posterior transcallosal approach in 1 patient were used for surgical therapy, and total resection was achieved in all patients. The overall neurologic outcome at follow-up (mean follow-up = 12 months, range: 1 month to 5 years) was excellent (no deficit) in 4 patients, good (some deficit but independent) in 2 patients, and poor (dependent) in 1 patient. One patient died after surgery. We conclude that intraventricular meningiomas are curable by complete surgical resection. This is possible with little neurologic morbidity when the neurosurgeon understands the surgical approaches available and the indications for those approaches.