Keywords: ویژگی های رادیولوژیک; Craniocervical approach; Jugular foramen; Microsurgery; Radiologic features; Skull base surgery; BOT; Balloon occlusion test; CN; Cranial nerve; CSF; Cerebrospinal fluid; CT; Computed tomography; DSJFT; Dumbbell-shaped jugular foramen tumor; ICA; Internal