Presentation
Painless left neck swelling.
Patient Data
Age: 25 years
Gender: Male
From the case:
Carotid body tumor
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Ultrasound

There is a well-defined homogeneous hypoechoic ovoid mass measuring (4.3 X 4.1 X 2.4 cm), splaying of the ICA and ECA. The color and power Doppler show prominent internal vascularity.
From the case:
Carotid body tumor
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Axial non-contrast

Left cervical soft tissue mass isodense to the muscles with strong enhancement, splaying the internal and external carotid arteries.
Case Discussion
The ultrasound and CT features are suggestive of a carotid body tumor.
Additional contributor: ZE. Boudiaf, MD, CHU Constantine