When considering radiology in skull base ENT there are essentially two prime modalities: computerised tomography (CT) and magnetic resonance (MR) scanning. High resolution CT (0.5-0.625mm) has transformed the diagnostic imaging of the temporal bone. The anatomical clarity offered, particularly of bony structures, has granted utility in imaging the external auditory canal, middle ear, mastoid and inner ear and petrous bone, either electively or acutely following trauma. MR scanning is more useful for soft tissue abnormalities, and lends itself to the evaluation of skull base and petrous apex tumours and inflammation, particularly where clarification of intracranial or perineural spread is required. Whilst CT scanning necessitates a dose of ionising radiation MR scanning does not. Both modalities have their particular strengths and limitations, and both are applied with various refinements to an extensive range of pathologies and clinical entities afflicting the skull base. The aim of this article will be to highlight some particular areas of current interest, rather than to detail an exhaustive list of applications.