FIGURE 2. Cuboid fracture: MRI performed for diagnostic uncertainty. (A) Skeletal scintigraphy tissue- and skeletal-phase images of 19-mo-old boy with 2-d history of limp and 1-d history of fever demonstrates high tracer localization and uptake in left cuboid. This finding is most suggestive of cuboid fracture in child of this age. (B) Noting that traumatized bone is susceptible to AHO and that scintigraphic findings are not specific, referring orthopedist requested MRI. Sagittal T1-weighted gadolinium-enhanced MR image demonstrates linear nonenhancing band of low signal intensity indicative of fracture through base of left cuboid. (C) Fracture had not been shown by plain radiographs. Only after bone aspirate and blood cultures showed no growth and after symptoms of viral upper respiratory and gastrointestinal illness had developed was diagnosis of cuboid fracture without AHO believed to be confirmed and antibiotics discontinued. Symptoms resolved after short leg walking cast was placed.