Jugular phlebectasia is an isolated saccular or fusiform dilation of a vein without tortuosity. Its aetiology remains controversial. It is infradiagnosed, as it is generally asymptomatic. However, it has been increasingly recognized in recent years due to the better imaging techniques which are available. Phlebectasia of the Internal Jugular Vein (IJV) is a rare disease. It is mostly unilateral and it involves only the right side. It is usually a childhood disease which is diagnosed during the study of an intermittent neck mass. Its treatment is controversial. Presently, a conservative approach to unilateral or bilateral asymptomatic phlebectasia is recommended. Symptomatic phlebectasia requires surgery. The diagnosis is suggested by clinical features which can be confirmed by noninvasive radiology. This paper is reporting a case of unilateral right internal jugular phlebectasia in a 12 year old female patient who complained of an intermittent, right sided neck swelling, where we used UltraSonoGraphy(USG) with Doppler and Contrast enhanced CT(CECT) to evaluate the lesion.