Maxillary Nerve/pathology; Neurilemmoma/pathology; Paranasal Sinus Neoplasms/pathology; Sphenoid Sinus/pathology; Trigeminal Nerve Diseases/pathology; Aged; Cranial Fossa, Middle/diagnostic imaging; Cranial Fossa, Middle/pathology; Cranial Fossa, Middle/physiopathology; Headache/etiology; Headache/pathology; Headache/physiopathology; Humans; Magnetic Resonance Imaging; Male; Maxillary Nerve/physiopathology; Neurilemmoma/diagnostic imaging; Neurilemmoma/physiopathology; Neurosurgical Procedures; Paranasal Sinus Neoplasms/diagnostic imaging; Paranasal Sinus Neoplasms/physiopathology; Paresthesia/etiology; Paresthesia/physiopathology; Postoperative Complications/etiology; Postoperative Complications/physiopathology; Sphenoid Bone/diagnostic imaging; Sphenoid Bone/pathology; Sphenoid Bone/physiopathology; Sphenoid Sinus/diagnostic imaging; Sphenoid Sinus/physiopathology; Tomography, X-Ray Computed; Treatment Outcome; Trigeminal Nerve Diseases/diagnostic imaging; Trigeminal Nerve Diseases/physiopathology