PMC10362654_01
swelling below the angle of the mandible on the right side of the neck
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F1
Clinical findings: on local examination, a relatively well-defined swelling of approximate size 2 x 2 cm is noted at the anteromedial aspect of the sternocleidomastoid (SCM) muscle, just below the angle of the mandible on the right side of the neck (Figure 1).
a well-defined homogenously isoechoic lesion above the bifurcation of the right common carotid artery on B mode ultrasonography
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F2
No evidence of adjacent inflammatory changes is noted (Figure 2).
minimal vascularity within the lesion on color Doppler (arrow)
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F3
On color Doppler, minimal vascularity is noted within this lesion (Figure 3).
CT-scan of a bilobed soft tissue density mass lesion on the right side of the neck anterior to the sternocleidomastoid muscle (arrow)
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F4
No evidence of calcification was noted within (Figure 4).
an intense homogeneous enhancement; multiple thin tortuous channels noted around this lesion after the post-contrast study axial section (arrows)
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F5
Multiple thin tortuous channels are noted around this lesion (Figure 5, Figure 6).
a mass lesion causing splaying of the internal carotid artery and external carotid artery on the right side after the post-contrast study sag section (arrows)
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F6
Multiple thin tortuous channels are noted around this lesion (Figure 5, Figure 6).