MR imaging of the foot: anatomy and pathology

MR imaging has become a valuable tool in the diagnosis of pathologic conditions of the foot. The direct multiplanar imaging capability, superior soft tissue contrast discrimination, and spatial resolution afforded by MR are advantages over other imaging modalities. The complex anatomy and spectrum of pathology in this region present a significant challenge to the radiologist. Familiarity with the anatomy, various clinical conditions, and their appearance on MR imaging is essential for accurate diagnosis. In this article, a limited review of the anatomy of the foot is presented together with a more in-depth discussion and illustration of a wide variety of pathologic conditions of the foot. Emphasis is placed on those conditions that are relatively unique to the foot.