Gadolinium-enhanced three-dimensional MR angiography in jugular phlebectasia and aneurysm.

True jugular vein aneurysms and phlebectasias are very rare abnormalities, which are usually discovered in children. Though their ultrasonographic features have been well described, magnetic resonance angiographic appearance of these lesions has not been reported in the radiology literature. We describe gadolinium-enhanced MR angiographic findings in two patients with internal jugular vein phlebectasia and one patient with anterior jugular vein aneurysm. The jugular venous system and its abnormalities were successfully depicted in the coronal plane, much like the images of coronal angiography.