Figure 1
Ultrasound shows an irregular shape and displacement of the ossification center of the right iliac crest.
Figure 2
Radiograph of the right hip shows fragmentation and displacement of the anterior third of the ossification center of the iliac crest with periosteal reaction.
Figure 3
Coronal PDFS MR image shows lateral avulsion of the ossification center (A, arrow). Coronal and axial oZTEo images show the osseous displaced fragment with periosteal reaction (B-C, arrowhead).