Acoustic NeuromaChordomas (Skull Base)CraniopharyngiomaCushing’s DiseaseEagle SyndromeMeningiomaPituitary Adenoma (functioning and nonfunctioning)PneumocephalusPott Puffy Tumor (Osteomyelitis of the Skull)Skull Base / Facial Fractures (general)Squamous Cell CarcinomaTegmen Defects (Tympani and Mastoideum)Temporal Bone Fracture