External jugular vein pseudoaneurysm

Case contributed by Doaa Khedr Mohamed Khedr
Diagnosis almost certain


Progressive right lower neck swelling for 6 months.

Patient Data

Age: 45 years
Gender: Female

A well-defined oval-shaped lesion is seen in the right lateral lower neck region, measuring about 2.7x2.4 x3.7 cm. The lesion shows gradual enhancement with venous fill-in. It shows linear non-enhancing posterior eccentric filling defect (mostly representing posterior wall thrombus). It is seen connected to the right external jugular vein.

Case Discussion

External jugular vein pseudo-aneurysm is rare condition often caused by trauma.

Doppler US and post contrast CT are the best diagnostic tools for assessment. 

Complications of pseudoaneurym include: thrombosis, aneurysm, rupture and thrombo-phlebitis.

Differential diagnosis includes: vascular malformation, abscess, nodal enlargement, lymphocele and schwannoma.  

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