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case_images: Cervical spine X-ray in the AP and lateral views showing an intervertebral disc implant at C5-C6 intervertebral space. Trachea appears slightly displaced to the right side.
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case_images: The trachea appeared slightly displaced to the right side (Figure 1).
case_images: (A and B): Ultrasound of the neck of the left paraspinal region showing a hypoechoic heterogenous tubular soft tissue mass measuring approximately 30 x 34 x 80 mm in diameter. (C): Colour Doppler US image showing minimal vascularity.
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case_images: The mass showed a heterogeneous echotexture with minimal vascularity on colour Doppler images (Figure 2).
case_images: (A and B): Contrast-enhanced CT scan of the neck in the arterial phase in axial and sagittal sections showing a faintly enhancing iso-to-hypo-dense mass measuring approximately 85 x 32 x 26 mm in diameter displacing the left CCA anteromedially and the trachea and oesophagus to the right.
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case_images: No calcifications were noted (Figure 3).
case_images: MRI of the neck. (A-C). Axial, sagittal, and coronal T2WI showing a hyperintense mass measuring approximately 85 x 32 x 26 mm in diameter displacing the left CCA anteromedially and the trachea and oesophagus to the right. (D and E): Gadolinium-enhanced axial and coronal T1WI showing homogenous enhancement of the mass.
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case_images: A C5-C6 disc spacer was also noted showing a metallic artefact minimally indenting the thecal sac (Figure 4).