The authors present a serie of cases of acoustic neurinoma cases treated with LINAC. Actuarial control rates at 1 and 2 years were both 98% and 5% at 90%. Only 4 patients (1%) required surgery for tumor growth. Seventeen patients (4.4%) experienced facial paresis and 14 patients (3.6%) reported facial hypoesthesia. The risk of these complications is directly related to tumor volume and / or the prescribed dose at the periphery of the tumor.

The presence of neuropsychological alterations in the mental status of patients with brain traumatic injury (BTI). Are characteristic of the disease and are considered as focal symptoms or isolated deficits. In frequency in the BTI. There is a usual way of presenting cognitive impairment. The alterations of the prefrontal cortex and the irregularities of the superior order of the behavior are one of the first psychopathological manifestations of BTI.

 A clinical case of intradural lumbar disc herniation at the L2-L3 level is presented and a review of the pathogenesis, clinical features, imaging findings, treatment and prognosis of these lesions is performed. Localization of a portion or all of it in the intradural space is an uncommon complication that can be difficult to differentiate clinically and imagingly from both common hernias and intradural tumors. Its diagnosis is often presumptive until the moment of the surgical treatment.

The tumors of the meninges are primary tumors that originate in meningothelial cells or non-meningothelial mesenchymal cells. The different types of existing tumors are determined by the appearance of the neoplastic cells in the microscope, thier etiology is unknown. Pathophysiology: The presence of the tumor in the intracranial level produces an imbalance of the compartments of the intracranial content, that is of the blood volume and the CSF, producing endocanean hypertension.