Epidermoid cysts are rare benign tumors developed from ectodermic inclusions. They usually sit at the ponto-cerebellar angle, the para-sellar region and the temporal fossa. Their seat at the fourth ventricle is unusual. We report two cases of squamous cell cyst in two young patients aged 21 and 33 admitted for intracranial hypertension syndrome associated with walking disorders. The diagnosis of epidermoid cyst of the V4 was evoked on the data of the MRI then confirmed in peroperative and in histology. The surgical excision was subtotal due to adhesion of the capsule to the upper part of the V4 floor. After a 12-month follow-up, the first patient showed no signs of tumor re-evolution. The second patient benefited from a ventriculo-peritonial derivation 45 days after the cyst was removed. After a 7-month follow-up, the patient showed no clinical signs suggestive of tumor re-evolution.

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The intraventricular meningioma is a rare pathology, benign whose healing can be obtained by the surgical treatment. We report a case of meningioma of the lateral ventricle in a young girl of 15 years of age with a notion of headache evolving since 1 year with gradual decline of the hearing, complicated, 6 months before her admission of an exophthalmia. A clinical examination: Conscious patient, left hemiplegia, dysarthritique and deafness of left perception. Cerebral MRI makes it possible to objectify the presence of a voluminous right intraventricular tissue process. The operation under a microscope allowed complete removal of the tumor. The immediate postoperative sequences are marked by a partial recovery of the hearing. Pathologic examination of an intraventricular meningioma (WHO grade I fibroblast meningioma 2007).