#Surgery #Recurrent #Cerebellar #Meningioma #Encasing #Sigmoid #Sinus #Exoscope [ad_1] In this video, Dr. Seddighi, ” Associate Prof of Neurosurgery ” shows a detailed step by step procedure of surgical resection of left cerebellar meningioma encasing the sphenoid sinus. The patient was operated on about 5 years ago and received 2 episodes of Gamma Knife radiosurgery.