Hearing preservation and tumour control after radiosurgery for NF2-related vestibular schwannomas.

Objectives: We analyzed the effects of stereotactic radiosurgery on tumour control and cranial nerve function in patients with vestibular schwannomas (VS) secondary to neurofibromatosis type 2 (NF2). Irradiation was performed with a Gamma Knife, model C equipped with a high-precision, robotized positioning system (APS).

Methodology: This study included 18 patients with 25 VSs secondary to NF2 that were treated from 2001 to 2010 with radiosurgery at our Gamma Knife Center.

[Misdiagnosis of sinus thrombosis with reversible posterior leucoencephalopathy].

Reversible posterior leucoencephalopathy and cerebral venous thrombosis share many symptoms. Both of them may lead to coma, and cause epilepsy or focal neurological signs. Moreover, diffuse leucoencephalopathy can be observed in both cases.