| Spread | Primary Site/Mets |
| Lymphatic Spread | Hodgkin lymphoma tends to spread to adjacent lymph node chains; non-Hodgkin lymphoma spreads irregularly. |
| Hematogeneous Spread | bone marrow, lung parenchyma, pleura, liver, bone, skin, kidneys, GI tract |
Key words/involvement: terms which indicate possible involvement by tumor. Common terms are provided but the list is not all-inclusive.
Other words/no involvement: other terms seen in reports which indicate an abnormality but do not indicate a neoplastic process. Common terms are provided, but the list is not all-inclusive.
Key information: words or phrases to look for in the report of the study. Key information helps define the extent of disease.