The stage is based on where lymphoma cells are found (in the lymph
nodes or in other organs or tissues). The stage also depends on how many
areas are affected. The stages of non-Hodgkin lymphoma are as follows:
- Stage I:
The lymphoma cells are in one lymph node group (such as in the neck or
underarm). Or, if the abnormal cells are not in the lymph nodes, they
are in only one part of a tissue or organ (such as the lung, but not the
liver or bone marrow).
- Stage II: The lymphoma cells are in at least two lymph node groups on the same side of (either above or below) the diaphragm. Or, the lymphoma cells are in one part of an organ
and the lymph nodes near that organ (on the same side of the diaphragm).
There may be lymphoma cells in other lymph node groups on the same side
of the diaphragm.
- Stage III: The lymphoma is
in lymph nodes above and below the diaphragm. It also may be found in
one part of a tissue or an organ near these lymph node groups.
- Stage IV:
Lymphoma cells are found in several parts of one or more organs or
tissues (in addition to the lymph nodes). Or, it is in the liver, blood,
or bone marrow.
- Recurrent: The disease returns after treatment.
In addition to these stage numbers, your doctor may also describe the stage as A or B:
- A: You have not had weight loss, drenching night sweats, or fevers.
- B: You have had weight loss, drenching night sweats, or fevers.
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