Carotid body tumor

Case contributed by Ahmed Abdrabou


Slowly growing neck mass.

Patient Data

Age: 40 years
Gender: Female

Large soft tissue mass is seen at the right carotid bifurcation showing avid enhancement of contrast the same as adjacent arteries and splaying the internal/external carotid arteries (lyre sign).

Diagnosis: paraganglioma of the neck (carotid body tumor)

Case Discussion

Carotid body tumor is a extremely vascular paraganglioma arising from the carotid body which locates at the carotid bifurcation. Splaying of internal and external carotid artery helps to differentiate it from other tumors e.g. vagal schwannoma, vagal neurofibroma and glomus vagale. The patient underwent preoperative embolization followed by surgical resection and the diagnosis of paraganglioma was confirmed.

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