How many with enlarged lymph nodes?

Hi, I was just wondering if anyone had any idea as to how many people with lymphoma, whether Hodgkins or Non-Hodgkins, have enlarged lymph nodes? It seems like most do, but I was wondering if anyone had a general percentage? Thanks so much!!! Also, what does the itching feel like? The doctor said I have all the signs of lymphoma, however I don't have any visible enlarged lymph nodes, and I had a chest x-ray and that was fine too. Thanks!