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Jugular vein phlebectasia is a rare venous anomaly commonly presenting as a unilateral neck swelling in children and adults. Its aetiology is unknown and its detection may have increased with availability of better imaging facilities. Due to its rarity, a high index of suspicion is required once other causes of neck swelling are excluded. The few reported cases are mainly in children and non-Africans adults. The authors report the case of a 54-year-old Nigerian woman presenting for the first time with a progressive, intermittent, painless right neck swelling, which was demonstrated on Doppler ultrasound and CT angiography to be an internal jugular phlebectasia. She had satisfactory surgical excision of the dilated segment for cosmetic reasons.
Internal jugular phlebectasia is a rare benign lesion, which mostly involves the right side. It is usually a childhood disease and believed to be of congenital origin. It can occur at any age and affects both genders. Nevertheless, to our knowledge, no single case has been reported in an African adult.
A 54-year-old woman presented with complaints of painless, intermittent right neck swelling noticed initially about 2 years prior to presentation. There was an associated feeling of a mass on swallowing and feeling of heaviness in the chest 8 months before presentation. The swelling was insidious in onset, gradually progressive with prominence of the swelling seen on leaning forward or straining. There was no history of change in voice, difficulty in swallowing or breathing. She was diagnosed hypertensive about 4 years earlier but non-compliant with antihypertensives. She had no other significant past history of illness.
Physical examination revealed a soft, pulsatile, fusiform right lower neck swelling anteromedial to the sternocleidomastoid muscle. The swelling increased in size with Valsava manoeuvre (figure 1) and was non-tender but compressible.
Ultrasound of the mass showed a fusiform dilatation of the right internal jugular vein measuring 4.5 cm in its widest transverse diameter at the level of the thyroid gland (figure 2). It showed normal venous spectral wave form on Doppler interrogation and was completely compressible. Turbulent flow was noted but no thrombus was seen within it. The contralateral internal jugular vein was normal in size measuring 1.1 cm in diameter at the corresponding level.
The ultrasound finding was confirmed on a carotid CT angiography This showed the extent of the dilatation to be progressively increasing from the jugular foramen to the infraclavicular region caudally (figure 3). The CT also showed congestion of the pulmonary veins. However, there was no mediastinal mass demonstrated.
Due to cosmetic concerns and feeling of heaviness in the chest, she had excision of the phlebectatic segment through an oblique neck incision along the anterior border of sternocleidomastoid muscle (figure 4). The ends of the jugular vein were ligated with the contralateral jugular vein being available to sustain venous drainage from the brain. Histological examination of the excised segment demonstrated necrotic changes in the vessel wall with intraluminal clot.
The differential diagnoses for a cystic neck mass that increases in size with Valsalva manoeuvre includes laryngocele, cystic hygroma and a superior mediastinal tumour.
The patient expressed satisfaction with the surgery and relief of her previous experience of a ‘heavy chest’ during her first and 6-month postoperative clinic review with no other complaints. She is presently scheduled for yearly follow-up clinic visits.
Internal jugular phlebectasia (also known as venous congenital cyst, venous aneurysm, vein ectasia or essential venous aneurysm) refers to an isolated abnormal fusiform or saccular dilatation of the internal jugular vein.1 It presents as a soft, compressible cystic swelling in the neck that increases in size during any kind of straining that increases the intrathoracic pressure, such as coughing, sneezing or crying. It is considered as an asymptomatic benign condition but, in some cases, there are complaints of constriction, choking, tongue pain and discomfort during physical activity.2 Our patient had noticed the neck swelling for over 2 years but only presented when she associated it with heaviness in her chest.
It is a rare benign vascular abnormality but may be under-reported3 possibly due to its benign nature. There is no known sex predilection, although one case reported that boys were affected twice often as girls.2 Most reported cases are in children. They usually occur on the right side as in our patient but may be bilateral.4
Anatomically, phlebectasia in the neck have been described in the following sequence in frequency: internal jugular, external jugular, anterior jugular and superficial comminicans.5
The cause of venous ectasia is unknown. It may be congenital, although this has not been proved. Histologically, examinations of the wall have revealed a reduction in elastic fibres, intimal hyalinisation and no abnormality.6
Diagnosis is usually confirmed with ultrasonography, CT, MR or venography.7 Ultrasound will often suffice;, allowing avoidance of more invasive examination, radiographic exposures and unnecessary surgical intervention. Doppler ultrasound shows an essential flat spectral wave indicating a venous structure.8 Ultrasound has been used to diagnose jugular phlebectasia since 1982.9
The differential diagnoses for a cystic neck mass that increases in size with Valsalva manoeuvre includes laryngocele, cystic hygroma, superior mediastinal tumour and other vascular lesions.10
Although cases of internal and external jugular phlebectasia have been reported mostly in children and non-African adults, as far as we are aware no case has been previously reported in the electronic literature in an African adult.3 11
Nonetheless, our case showed ultrasound and CT features described in the reported cases in children.4 12 The swelling is not known to progress rapidly and there have been no instances of spontaneous rupture of the swelling or other serious complications7 11
The complications of this condition are rare but include thrombosis, congestive heart failure and massive haemorrhage secondary to trauma.12
No treatment is indicated for this benign self-limiting condition except in a few patients who complain of symptoms and require surgical resection of the affected vein or covering with muscular segment.13 Some authors believe that ligation of the jugular vein may produce effects of venous congestion in a small subset of patients resulting in cerebral oedema. Jugular vein ligation cannot be applied in cases with bilateral affliction.14
Our patient was essentially asymptomatic from the neck mass and the pulmonary congestion observed is most likely is due to her unattended hypertensive heart disease. Surgical excision was based on cosmetic concerns.
Competing interests None.
Patient consent Obtained.