Meningiomas of the lateral ventricles. A review of 10 cases

Abstract

SummaryBackground. Intraventricular meningiomas are rare tumours that represent about 2% of all intracranial meningiomas, and represent one of the most challenging problems in neurosurgery. They are located deep within the brain and often are sizable and highly vascular. We report on a series of 10 meningiomas of the lateral ventricles treated at our institution during the last 28 years.Patients. Ten patients (6 women, 4 men; mean age 41.6 yrs) were admitted to our medical center between 1978-2005 with meningioma of the lateral ventricles. Headache was the first symptom in 8 cases and ocular signs were present in 5 patients.Results. Seven tumours were located in the right ventricle (70%) ranging in size from 2-8 cm, with 7 tumours larger than 3 cm in diameter. Nine patients underwent surgery with total excision in 8 cases and subtotal in the other; the remaining patient only received radiosurgery.Conclusions. Total resection is the gold standard for treatment which was possible in all but one of the cases undergoing surgery. Resultados. El síntoma de debut fue la cefalea en 8 casos y en 5 pacientes existían alteraciones oculares. Siete tumores estaban localizados en el ventrículo derecho (70%) con un tamaño que oscilaba entre 2 y 8 cm.; 7 tumores tenían más de 3 cm. de diámetro. Se intervino quirúrgicamente a 9 pacientes consiguiéndose una extirpación completa en 8 casos y subtotal en el otro; el paciente restante fue tratado mediante radiocirugía estereotáctica.Conclusiones. La resección completa es el tratamiento idóneo en los meningiomas intracraneales, que exceptuando un caso fue posible en todos nuestros pacientes operados.PALABRAS CLAVE: Abordajes quirúrgicos. Meningioma intraventricular. Tratamiento quirúrgico. Tumor cerebral. Ventrículo lateral.

Tumor characteristics guiding selection of channel-based versus open microscopic approaches for resection of atrial intraventricular meningiomas: patient series

“…Microsurgical resection through a transsulcal or transcortical approach to the atrium has classically been the standard operative management. 6,7 For the past decade or so, however, approaches to deep subcortical and ventricular zones have been facilitated using a tubular retractor or port, often in combination with an extracorporeal telescope (exoscope). 8 Irrespective of approach, the location and anatomical configuration of AIMs require safe navigation through the subcortical space, [9][10][11][12] violation of which can cause postoperative visual, motor, and/or cognitive deficits.…”