Figure 3a. Sagittal water-only MR images (620/17) (a) before and (b) after the intravenous administration of gadopentetate dimeglumine in a patient with neuropathic foot disease and an arthrodesis in the tibiotalar joint. a shows slight hyperintensity in the cuboid bone (solid arrow) and the base of the fourth metatarsal bone (open arrow). b shows marked focal enhancement in the cuboid bone (solid straight arrow) and the base of the fourth metatarsal bone (open arrow), which supports the clinical diagnosis of osteomyelitis. Also, note the plantar ulcer with cellulitis (solid curved arrow).