The most common cause of a mass in the neck appearing only during stra
ining is a laryngocele. On the other hand, the rare jugular phlebectas
ia may present in a similar manner. The cause of the jugular phlebecta
sia remains unclear. No treatment is indicated for this benign self-li
miting condition. However, surgical removal for cosmetic purposes alon
e consists of a unilateral excision of the internal or external jugula
r vein; this produces no gross side-effects. Conclusion Every patient
with a swelling in the neck that enlarges in size after the Valsalva m
anoeu, straining, coughing or sneezing should be suspected of having j
ugular phlebectasia.