Hi I noticed a lump on the upper right side of my neck and it was pulsating faster and much stronger then the left side. It turns out it's a vein and it is bigger then the left side which is 3.9mm, right side 7.4mm. The ENT doctor has referred me to a vascular surgeon and the radiologist recommended I have an MRI. This will all take a few days or weeks in the mean time I'm stressing as the ENT doctor thinks it may be an aneurysm. Please could you tell me if there could be any other reason for this as I'm from the uk currently residing in Dubai and am concerned as it's private healthcare here not sure if this is all necessary.