The authors report the case of a patient of 16 years with a Chronic subdural hematoma (CSH) formed a left temporal congenital arachnoid cyst, which simulated a meningioma plane, which was operated by craniotomy and resection of membranes.Young people may also have CSH if they have similar conditions that favor developmentof CSH in the elderly, such as a congenital arachnoid cyst, which is a major risk factor for CSH in young and should be considered in the differential diagnosis of these lesions.

The authors report their experience with LINAC Stereotactic Radiosurgery for tumors of the skull base: 32 patients (21 meningiomas and 11 acoustic neurinomas) tracked over 20 months between November 2004 and July 2010. Benign tumors of the skull base have their personalized treatment option, either as primary therapy after subtotal resection or recurrence, radiosurgery is the best choice because it provides high rates of regression with control or low risk of complications.

The percutaneous microcompression of the Gasserian ganglion with the balloon of Fogarty is a highly effective technique in the surgical treatment in patients with trigeminal neuralgia. The authors realized a retrospective and prospective study of 24 patients with trigeminal neuralgia treated surgically by the technique of percutaneous microcompression of the Gasserian ganglion with the balloon of Fogarty in the Clinics Maison de Santé between January 2005 until December 2009.