Good luck dude. My dad went through about 50 different tests last year, and got really freaked out. It ended up being a Cyst - nothing cancerous - even though every doctor he went to more or less told him to panic.
Apparently that's pretty common, and more than likely thats all it is. Still, sucks I know.
Hey man.... I wouldn't stress but I know it's hard not to. It could also be a epidermal cyst or varicose vein. Let us know how things go... I hope all goes well.
To BigWill: not cool joking about stuff like that.