External jugular phlebectasia in children.

The most common cause of a mass in the neck appearing only during straining is a laryngocele. On the other hand, the rare jugular phlebectasia may present in a similar manner. The cause of the jugular phlebectasia remains unclear. No treatment is indicated for this benign self-limiting condition. However, surgical removal for cosmetic purposes alone consists of a unilateral excision of the internal or external jugular vein; this produces no gross side-effects. Conclusion. Every patient with a swelling in the neck that enlarges in size after the Valsalva manoeuvre, straining, coughing or sneezing should be suspected of having jugular phlebectasia.