Where is the lymphoma found in most cases?

Lymph nodes: The most common presentation is enlarged lymph nodes. There are other presentations but depends on the extent of disease and organs involved. Other symptoms include night sweats (drenching), weight loss, fatigue (nonspecific). Hope this helps.

Lymph nodes: Most of the 60 or more types of lymphomas arise in the lymph nodes, followed by outside the lymph nodes such as in gastrointestinal, skin, and others. So if you are concerned about lymphomas, the two generic kinds, Hodgkin and NonHodgkin arise in lymph nodes. That said, bumps or macules on skin, ulcerated mass in stomach could be sites of low grade lymphomas such as mycosis fungoides or MALTOMAs.