Abstract
Intraventricular schwannoma in either infra or supratentorial location is an extremely rare tumor with less than 20 cases described in the literature to date. There is no consensus regarding the origin of this tumor. This paper describes an excised supratentorial schwannoma located on the wall of the left lateral ventricle. The relevant literature is reviewed. A 34-year-old man with no significant medical history presented with a recent episode of right focal motor seizures and weakness of the right lower extremity. Magnetic resonance imaging of the brain demonstrated a heterogeneous enhancing mass in the body of left lateral ventricle mass lesion with vasogenic edema in the adjacent brain parenchyma. The patient underwent a left frontoparietal parasagittal craniotomy with neuronavigational guidance to avoid damage to the primary motor cortex. The tumor originated from the ependymal layer and extended to the body of lateral ventricle. Complete surgical excision of the tumor was achieved. Intraventricular schwannomas are rare tumors amenable to complete surgical excision, having a good prognosis without the need for adjuvant therapy. The recognition of this benign and potentially curable neoplasm and its differentiation from other less favorable tumors is of obvious importance.
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