PMC4921192_01
15-year-old with atraumatic right foot and ankle pain. A. Short-axis STIR of the right foot demonstrates enlargement and distention of the abductor hallucis muscle (arrow) with inhomogeneous hyperintensity consistent with edema. B. Short-axis T1 demonstrates relative hyperintensity of the abductor hallucis (arrow) muscle relative to the remaining musculature, suggesting microhemorrhage.
gr1.jpg
PMC4921192_01_gr1.jpg
fig1
Subcutaneous and deep fascial edema was seen adjacent to the enlarged muscle (Fig. 1).
15-year-old with atraumatic right foot and ankle pain presenting for 5-month follow-up examination. A. Coronal fat-saturated proton density demonstrates fatty replacement of the abductor hallucis muscle (arrow). B. Sagittal fat-saturated T2 demonstrates similar findings (arrow).
gr2.jpg
PMC4921192_01_gr2.jpg
fig2
A follow-up MRI at 5 months revealed atrophic changes within the abductor hallucis (Fig. 2).