Medical imaging of the diabetic foot.

Medical imaging of the diabetic foot entails a variety of imaging modalities. The diagnostic evaluation often includes a gamut of studies that include conventional radiography, CT, nuclear medicine scintigraphy, MRI, ultrasonography, and a newcomer, positron emission tomography combined with CT and leukocyte labeling. There is not yet "one best test" for sorting out the diagnostic dilemmas that are commonly encountered.