MRI of the upper aerodigestive tract and neck

The application of new technology has improved the ability of MR to image the upper aerodigestive tract and neck. Improved resolution along with inherent high tissue contrast and multiplanar capability now allow clear definition of detailed anatomic and pathologic tissue planes. MR currently rivals other imaging modalities in this region. At present, it is often better in demonstrating the depth of tumor infiltration and the presence of nodal metastasis. Initial studies also suggest that MR can effectively image postoperative sites and discriminate chronic fibrosis from recurrent tumor. Localization of abnormal parathyroid glands, particularly for re-exploration, is a promising technique. If the present limitations are recognized, such as identification of soft tissue calcification, MR can play an important role in the evaluation of the face and neck. With additional investigation and continued technologic improvements it is likely that this role will continue to increase.