What Tactics Should a Surgeon Choose to Treat a Black Extracerebral Tumor? A Case Report of Psammomatous Melanotic Schwannoma of the Meckel Cave and Literature Review.

Background: Neoplasms located in the Meckel cave account for 0.2%-0.5% of all intracranial tumors.

Deep Brain Stimulation of the Subthalamic Nucleus in Patients with Parkinson Disease with Prior Pallidotomy or Thalamotomy.

To evaluate the efficacy of deep brain stimulation of the subthalamic nucleus (STN DBS) in patients with Parkinson disease (PD) who previously underwent lesioning of the basal ganglia. The study included 22 patients who underwent STN DBS. Eleven patients had undergone prior unilateral pallidotomy ( = 6) or VL/VIM thalamotomy ( = 5) while the other 11 patients had not.