PMC4811848_01
Anterior-posterior radiograph of the hip, showing a linear longitudinal lucency (arrow), along the medial cortex of the femoral diaphysis just inferior to the small trochanter. There is also a small degree of associated cortical thickening (arrowhead).
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Conventional radiography was performed in the emergency department, showing a medial intracortical hypodense vertical line (Fig. 1) in the femoral shaft, immediately below the small trochanter.
CT scan with axial and coronal MPR (multiplanar reformations) - an intracortical fracture line is clearly demonstrated (arrows). Also, note the associated cortical thickening (arrowhead).
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CT scan (Fig. 2) and MR imaging (Fig. 3) were performed, confirming the presence of a longitudinal intracortical stress fracture of the medial aspect of the femoral diaphysis, just below the small trochanter.