MAGNETIC-RESONANCE-IMAGING OF THE SKULL BASE

Magnetic resonance (MR) imaging has made it possible to evaluate the s kull base in one primary screening examination. In most cases, MR imag ing also serves as the definitive imaging study. In some traumatic or congenital lesions or both, computed tomography (CT) and conventional radiographs may be preferred or may be needed to supplement the MR ima ging examination. This article discusses the pathology of the skull ba se, particularly in the evaluation of suspected neoplasms. Optimal ima ging of the skull base requires a minimum of two planes of section, ty pically with and without gadolinium contrast enhancement.