Facial nerve imaging.

A review of past, present, and potential future imaging of the facial nerve outlines the general technologic advances in radiology. The newer modalities provide more information than before; however, with more sophisticated technology, efficient use should be emphasized. A coordinated approach between the otolaryngologist and the radiologist is needed first to localize the most likely segment and then to perform a tailored radiographic study specifically for that segment. In this way, it is hoped that we can avoid unnecessary studies and achieve earlier diagnoses.