How To Approach Internal Jugular Vein Aneurysm; A Rare Cause of Neck Mass
Journal Title: Biomedical Journal of Scientific & Technical Research (BJSTR) - Year 2017, Vol 1, Issue 6
Abstract
Venous aneurysms are rare entities especially while presenting neck mass. Internal Jugular vein anuerysms comprise a small part of all venous aneurysms.Natural history of the pathology depends on anatomic location. Surgical intervention is spared for symptomatic cases. We present a15 year old male who admitted to otorhinolaryngology clinic with expansile right lateral neck mass with out any pulsation. Physical examination revealed a normal morphology of cervial region. When the patient was asked to strain, an expansing soft painless mass appeared in the right supraclavicular region. The mass disappeared when the patient breathed normally. Lateral cervical cyst was suspected. Ultrasonography and magnetic resonance imaging with venography sequences were ordered. Dynamic measurements showed enlargement of right internal juguler vein with cross sectional diameter of 39 mm at proximal segment of the vein and reaching 59 mm vertically. Echocardiographic evaluation and thorax imaging showed no accompanying pathology. Doppler ultrasound showed well mucosal lining with substantial muscular layer without any thrombotic focus. Direction of flow was toward subclavian vein. Conservative approach was preffered for the case. Patient was followed up on for 1 year with no additonal symptom. Internal jugular vein aneurysms and phlebectasias are the most common venous malformations in the head and neck region. Venous aneurysms are divided into two as primary and secondary aneurysms [1]. Secondary ones are mainly due to trauma, infection, inflammation, venous valve insufficiency and arteriovenous malformations. Primary ones are rare and focal saccular or fusiform dilatations of the veins. No incidence was reported in the literature but it is known to be equal between male and female. A venous aneurysm can yield symptoms at any age. The pathology is rather benign, owing to the localization, they can lead serious complications such as thrombosis, pulmonary embolism, rupture and bleeding and pressure over neighbouring structures. A clear aetiology has not been yet established. Recent literature states that structural changes take place in the vessel wall due to increased matrix metalloproteinases [1]. The most common location for a venous aneurysm is lower extremities with popliteal vein is the leading one. Deeper locations are prone to be related with thrombosis and pulmonary embolism [2]. The symptomatology of the entity includes mass with pain and swelling. Surgical intervention for asymptomatic internal juguler vein aneuryms is generally due to cosmetic expectations opposing aneurysms of deep venous systems. Case Report 15 year old male applied to otorhinolaryngology clinic with expansile right lateral neck mass with out any pulsation. Physical examination revealed a normal morphology of cervial region. When patient is asked to strain an expansing soft painless mass appeared in the right supraclavicular region (Figures 1 & 2). As the Valsalva manuever was prolonged, the mass continued to swell. Nevertheless swelling disappeared when the patient breathed normally. Initially a lateral cervical cyst was suspected. Ultrasonography and magnetic resonance imaging with venography sequences were ordered. Static magnetic resonance imaging of neck did not reveal any pathology. Dynamic measurements showed enlargement of right internal juguler vein with cross sectional diameter of 39 mm at the proximal segment of the vein and reaching 59 mm vertically (Figures 2 & 3). Evaluation of thorax was achieved with computed tomography which also showed dilatation at the proximal part of the jugular vein (Figure 4). Echocardiographic evaluation and thorax imaging showed no accompanying pathology. Doppler ultrasound showed well mucosal lining with substantial muscular layer without any thrombotic focus (Figure 5). The lesion was reported as fusiform internal jugular vein aneurysm. Consultation with cardiovascular surgery was done and conservative approach was preffered. Patientwas followed up on for 1 year with no additonal symptom (Figures 1-5). Patients who admit to otorhinolaryngology clinic with neck masses are applied a series of examinations. After physical examination ordering ulstrasonography generally gives enlightening information about the nature of the mass. Sometimes the mass can be dynamic such as laryngoceles, communicating cysts or blood vessels. In such cases patients should be asked to strain to swell the mass. Cervical adenitis, cystic hygroma, thyroglossal duct cysts, dermoid cysts, branchial cleft cysts and arterial– venous malformations are the most common pathologies which sould be kept in mind for differential diagnosis. Cervial masses could emerge due to a long list of diseases, however laryngoceles, superior mediastinal tumors or cysts and jugular vein aneurysms swell with the Valsalva maneuver [3]. If an asymptomatic jugular vein aneurysm starts causing symptoms such as pain, the clinician should suspect thrombosis. Paleri et al. stated that up to 10 % percent of the jugular aneurysms can be bilateral, therefore bilateral neck should be evaluated and followed up with doppler ultrasound [4]. According to the liaterature because of risk of thrombosis in IJV aneurysm is less than 1%, in most of the cases conservative approach is preffered [5,6]. Because accompanying jugular vein thrombosis can complicate the case, due to increased risk for massive pulmonary embolism, some prophylactic measures, such as major venous vessel trunk isolation, can be taken.
Authors and Affiliations
Ayşe Pelin Yigider, Hasan Emre Koçak, Hüseyin Avni Ulusoy, Mehmet Keskin
Keywords
Related Articles
- EP ID EP581109
- DOI 10.26717/BJSTR.2017.01.000524
- Views 198
- Downloads 0
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