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Non-Hodgkin's Lymphoma

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Stage Information for Adult Non-Hodgkin Lymphoma

Stage is important in selecting a treatment for patients with non-Hodgkin lymphoma (NHL). Chest and abdominal computed tomographic (CT) scans are usually part of the staging evaluation for all lymphoma patients. The staging system is similar to the staging system used for Hodgkin lymphoma. Noncontiguous lymph node involvement, uncommon in Hodgkin lymphoma, is more common among patients with NHL. Involvement of Waldeyer ring, epitrochlear nodes, and the gastrointestinal tract is also more common. Extranodal presentations are more common in NHL. A single extranodal site is occasionally the only site of involvement in patients with diffuse lymphoma. Bone marrow and hepatic involvement are especially common in patients with low-grade lymphomas. Cytologic examination of cerebrospinal fluid may be positive in patients with aggressive NHL. Involvement of hilar and mediastinal lymph nodes is less common than in Hodgkin lymphoma. Mediastinal adenopathy, however, is a prominent feature of lymphoblastic lymphoma and primary mediastinal B-cell lymphoma, entities primarily found in young adults.

The majority of patients with NHL present with advanced (stage III or stage IV) disease that can often be identified with limited staging procedures such as CT scanning and biopsies of the bone marrow and other accessible sites of involvement. Laparoscopic biopsy or laparotomy is not required for staging but may be necessary to establish a diagnosis or histologic type.[1] Positron emission tomography (PET) with fluorine-18-fluorodeoxyglucose can be used for initial staging and for follow-up after therapy as a supplement to CT scanning.[2,3,4,5,6] Interim PET scans after two to four cycles of therapy have not provided reliable prognostic information yet because of problems of interobserver reproducibility in a large cooperative group trial (ECOG-E3404 [NCT00274924]) and lack of difference in outcome between PET-negative and PET-positive/biopsy-negative patients in a single-institution trial.[7,8]

Staging Subclassification System

Table 2. Anatomic Stage/Prognostic Groupsa

a Reprinted with permission from AJCC: Hodgkin and non-Hodgkin lymphomas. In Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 607-11.
StagePrognostic Groups
IInvolvement of a single lymphatic site (i.e., nodal region, Waldeyer ring, thymus or spleen) (I).
OR
Localized involvement of a single extralymphatic organ or site in the absence of any lymph node involvement (IE) (rare in Hodgkin lymphoma).
IIInvolvement of two or more lymph node regions on the same side of the diaphragm (II).
OR
Localized involvement of a single extralymphatic organ or site in association with regional lymph node involvement with or without involvement of other lymph node regions on the same side of the diaphragm (IIE). The number of regions involved may be indicated by a subscript Arabic numeral, for example, II3
IIIInvolvement of lymph node regions on both sides of the diaphragm (III), which also may be accompanied by extralymphatic extension in association with adjacent lymph node involvement (IIIE) or by involvement of the spleen (IIIS) or both (IIIE, IIIS). Splenic involvement is designated by the letter S.
IVDiffuse or disseminated involvement of one or more extralymphatic organs, with or without associated lymph node involvement.
OR
Isolated extralymphatic organ involvement in the absence of adjacent regional lymph node involvement, but in conjunction with disease in distant site(s). Stage IV includes any involvement of the liver or bone marrow, lungs (other than by direct extension from another site), or cerebrospinal fluid.
1|2|3

WebMD Public Information from the National Cancer Institute

Last Updated: May 16, 2012
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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