What does enhancement mean in, "The 10mm lesion in the right aspect of the T3 vetebral body exhibits enhanceme?

I had breast cancer 6 years ago. Now we are wondering if it has returned in the spinal column, specifically at the T3 level. It could possibly be a hemangioma, but I dont get in to see an oncologist for over 2 more weeks and don't want to wait that long without at least knowing something more. Note to all, don't get cancer in the summertime when all the doctors are on vacation. what does it mean "exhibit enhancement".