Abstract
Pediatric meningiomas are rare and account for only 2.2% of CNS tumors. In this age group, they are more frequently located in atypical sites, such as, mainly, the ventricular system, with a frequency of 8.8 to 13.6%. Adding this to the fact that the angiomatous subtype constitutes only 2.1% of all meningiomas, the rarity of the case reported here i s corroborated. We report a 17-year-old female patient diagnosed with intraventricular angiomatous meningioma; she underwent surgical resection of the tumor in the body and frontal horn of the right lateral ventricle, and there was no neurological sequela. With a follow-up of 4 years, there was no recurrence and the patient had clinical stability. Intraventricular tumors usually have slow growth and reach considerable size until they cause symptoms and then are diagnosed. In addition, the tumor’s deep location and proximity to eloquent areas make such tumors an neurosurgical challenge. The angiomatous subtype, due to the presence of hypervascularization (consisting of more than 50% of vascular components), may, in some cases, hinder surgical resection as well as be erroneously diagnosed. However, surgical treatment aimed at total resection of the lesion remains the conduct of choice in the case reported here, especially in patients in the first two decades of life, in which the use of radiation is avoided. Specifically when it comes to the surgery, we chose a transcallosal approach that allows a good transoperative visualization of the lesion when located in the body and frontal horn of the lateral ventricle.
Highlights
There were no signs of dilation of the supratentorial ventricular system (Fig. 1 A - D)
That the angiomatous subtype– defined as presenting more than 50% of vascular components on microscopic analysis
The equivalence between genders contrasts with what occurs in the adult population, which has a female to male ratio of 2:1.1,2,14 This difference is believed to be due, mainly in the prepubertal period, to the absence of the effect of sex hormones on corticosteroid receptors in meningioma cells.[10,15,16,17]
Summary
There were no signs of dilation of the supratentorial ventricular system (Fig. 1 A - D). Meningiomas have a progressively higher incidence with increasing age, with a mean age of presentation of 65 years. They are, the most frequently reported tumors of the central nervous system (CNS) in adulthood.[1] cases in children and adolescents are rare, representing 2.2 to 2.6% of CNS tumors.[1,2] In such age group, are more often located in unusual sites, such as in the ventricular system.[3]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
