PMC2913533_01
CT neck with contrast showing a low attenuating collection within the right carotid space, which demonstrates peripheral ring enhancement (block arrow). The appearances are suggestive of an abscess. No intracranial abnormality was identified.
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A computed tomography (CT) scan of the neck suggested an abscess in the right carotid space ascending into the jugular foramen (Figure 1).
MR neck with contrast demonstrating focal thrombus within the most superior part of the right internal jugular vein and extending through the jugular foramen into the sigmoid sinus (striped arrow). No evidence of deep cerebral venous thrombosis was noted.
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fig2
However, magnetic resonance imaging (MRI) confirmed it to be a focal thrombus within the most superior part of the right IJV extending through the jugular foramen into the sigmoid sinus (Figure 2).
CT neck with contrast at three-month followup showing that a focal filling defect consistent with thrombus is noted in the distal sigmoid sinus on the right side extending into the right internal jugular vein up to the level of C2 vertebra. There is partial recanalisation of the previously thrombosed segment of the right internal jugular vein (notched arrow). Normal appearances of the internal carotid artery and internal jugular vein on the left side are shown.
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fig3
At three months followup, he had significantly improved swallowing, and repeat CT neck showed partial recanalisation of right IJV (Figure 3).