Carotid body tumour

Presentation

Patient presented complaining of a mass in the left side of the neck.

Patient Data

Age: 24
Gender: Male
CT

Angio CT of the neck

There is a highly vascular mass measuring 3.6 x 3.3 cm in the left carotid space situated between and splaying the external and internal carotid arteries (the lyre sign). 

The external carotid artery is totally encased by the tumor, the internal carotid artery is not completely encased.Albeit that, both arteries do not show signs of narrowing of their lumens.

Ultrasound

Ultrasound of the neck

US images show a hypoechoic and heterogeneous mass.The Doppler imaging demonstrates a highly vascular pattern.

Case Discussion

The carotid body tumor is one of the commonest paragangliomas of the neck.

This tumor originates from cells located at the bifurcation of the common carotid artery. The tumor causes the splaying of the external and internal carotid arteries, causing the radiological sign knows as the Lyre sign.

Usually, there are no symptoms, just a palpable and pulsatile mass in the neck, due to its high vascularity.

There are cases in which the tumor is bilateral, this is more common in familial cases than sporadical cases.

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Case information

rID: 47694
Case created: 29th Aug 2016
Last edited: 24th Oct 2016
Inclusion in quiz mode: Included

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