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Figure 2: (a) Coronal CT scan showing hypodense foci (white arrow) representing air within the left femur, (b) Coronal short tau inversion recovery (STIR) showing hyperintensities (white arrow) in left femoral head, neck and shaft with signal void areas within. Similar altered signal intensity seen in left iliacus (white dashed arrow) and obturator externus suggestive of myositis. (c) Axial T2-weighted fat saturation showing cortical breach along the posterior portion of femoral neck (white arrow). (d) Coronal T1-weighted reveals altered signal intensity areas involving the left femur (white dashed arrow). (e) Coronal post contrast T1-weighted fat saturation showing slight post contrast enhancement (white arrow). (f) Axial post contrast T1-weighted showing similar finding (white dashed arrow)

Figure 2: (a) Coronal CT scan showing hypodense foci (white arrow) representing air within the left femur, (b) Coronal short tau inversion recovery (STIR) showing hyperintensities (white arrow) in left femoral head, neck and shaft with signal void areas within. Similar altered signal intensity seen in left iliacus (white dashed arrow) and obturator externus suggestive of myositis. (c) Axial T2-weighted fat saturation showing cortical breach along the posterior portion of femoral neck (white arrow). (d) Coronal T1-weighted reveals altered signal intensity areas involving the left femur (white dashed arrow). (e) Coronal post contrast T1-weighted fat saturation showing slight post contrast enhancement (white arrow). (f) Axial post contrast T1-weighted showing similar finding (white dashed arrow)