Fig. 2.

Sagittal (A) and axial (B) enhanced computed tomography images of the neck at the soft-tissue window (left to right) demonstrating mild prevertebral thickening with edema (dotted white arrows), of up to 1.1-cm thickness. There is mild obliteration of the left parapharyngeal space with mild adjacent mass effect on the nasopharynx and on the left carotid sheath vessels laterally (smooth white arrow). There is no evidence of peripheral enhancement or venous thrombosis suggestive of underlying infection.