CBCT: basic principles and overview. CBCT of the sinuses: anatomy, pathology, fungal sinusitis. The frontal sinus: anatomy and pathology.Temporal bone anatomy: CBCT vs MDCT. Temporal bone pathology and CI planning: can CBCT replace MDCT? Other applications of CBCT. Imaging approach to the petrous apex (lesions).Non-invasive evaluation of pulsatile tinnitus.Imaging of cholesteatoma.Pathology of the posterior fossa cranial nerves.