Click on image to view larger version.



FIG 1. Serial axial CT images.

A, Initial axial CT scan shows lesion with gas attenuation (-900 HU) in C5 vertebral body.

B, Axial CT scan obtained 2 months after initial presentation shows enlarged lesion in C5 vertebral body.

C, Axial CT scan obtained 16 months after initial presentation shows further enlarged lesion in C5 vertebral body.