Imaging Quiz Case 1
Shashi Aggarwal, MD, M. Anne Keller, FRCPC, Toronto, Ontario
A 58-YEAR-OLD woman presented with 1-month history of a mass in the right side of her neck. Her medical history was significant for resection of a squamous cell carcinoma of the uvula 3 years previously, followed 2 years later by a modified radical left neck dissection for its recurrence. Physical examination revealed a 3x3-cm nonpulsatile mass inferior to the right angle of the mandible. Findings of the remainder of the examination were within normal limits.
A contrast-enhanced computed tomographic (CT) scan of the neck (120 mL of Omnipaque 300 was infused at 0.5 mL/s with an automatic injector; a rapid scan series was begun after 60 mL of contrast had been injected) was obtained. This revealed an ovoid, mixed-density, partly calcified mass (Figure 1, left, small arrows) in the right carotid space anterior to the internal jugular
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