My 24 Year old son has had mono, cmv, and other viral infections of the throat for the past year. His tonsils are very large and the lymph glands in his neck are swollen. He has lost 20 pounds and has had boughts of throwing up as well. This week he found a lump deep in his upper leg. He was referred to an infectious disease dr but the dr said he could not do anything until his throat has another infection and then cultures can be done. I am worried about lymphoma. Is this a possibility?