School ager with left hip pain for 2 weeks

MRI of myositis of the hip
Axial (above left and below left) and coronal (above right) T2 with fat saturation MRI of the pelvis shows bright signal in the expanded and edematous left obturator internis and left gluteus medius muscles, which on coronal T1 MRI with contrast (below right) are shown to faintly enhance.

The diagnosis was myositis of the left hip.