PMC5234305_01
Anterior right synchondrosis fracture with 4 mm displacement. Normal left synchondrosis
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F1
He was placed in a hard cervical collar and a computed tomography (CT) scan of the cervical spine demonstrated asymmetric widening the C1 arch, 4 mm to the right, with a fracture through the right C1 synchondrosis [Figure 1].
Three-dimensional reconstruction demonstrates a right synchondrosis fracture with inferior rotation of the fracture segment
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F2
Three-dimensional reconstruction demonstrated mild displacement of the C1 vertebra to the left [Figure 2].
Sagittal T2 STIR MRI demonstrating prevertebral soft tissue hyperintensity anterior to the upper cervical vertebrae
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F3
The short T1 inversion recovery (STIR) magnetic resonance imaging (MRI) showed an increased signal around C1, reflecting edema in the cartilaginous tear [Figure 3].