I have heard of gallium, but am not sure what it is. I know barium is drank in large amounts (been there, done that) to highlight your intestinal tract. I think the gallium may be the IV dye that they inject to highlight your kidneys, liver, and gall bladder. I am not sure which lymph nodes you are wanting them to check. I know I can feel mine on the one side of my throat always swollen. I am not sure if the scan is the correct test. Maybe an ultrasound would be better?
Dx: UCTD,Raynaud's,iron deficientcy anemia,proteinuria
Rx: Multi-rec folic 500, Mobic 15 mg, Plaquenil 400mg