HISTORY:
                   A 35 year old male presented with sudden decrease in hearing on left side and seizures. MRI showed left sino-dural angle mass.
                    
                  
                    
                 
						
                         
			             
                         
			             
			            
			          
                                   
                        
                          
			            
			           
                
                    
                 
                            What is the most likely diagnosis?
                            
                                - Schwannoma
 
                                - Fibrous meningioma
 
                                - Solitary fibrous tumor / hemangiopericytoma
 
                                - Dural based Ewing's sarcoma
 
                               
                          
                               
                            
                            
                         
                        
                         
                            
                        Solitary fibrous tumor / hemangiopericytoma