How is diffuse large cell lymphoma staged?

Updated: Jun 12, 2019
  • Author: Shipra Gandhi, MBBS; Chief Editor: Emmanuel C Besa, MD  more...
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Answer

Clinical staging of patients with diffuse large B-cell lymphoma (DLBCL) is fundamental in order to (1) define the treatment plan (ie, combined-modality vs systemic therapy plus/minus CNS prophylaxis), (2) determine risk stratification according to the International Prognostic Index (IPI) score system, and (3) predict the likelihood of survival following frontline therapy.

The staging of lymphoma patients provides information necessary for treatment planning and has prognostic significance, especially in Hodgkin lymphoma (HL). Currently the Ann Arbor staging system is the preferred staging system for DLBCL (see below).

After histologic and immunologic findings confirm the diagnosis of diffuse large cell lymphoma, a pretreatment staging evaluation should be performed. At minimum, patients should have routine blood counts and blood chemistries, particularly a lactate dehydrogenase (LDH) level, which is a prognostic parameter. Carefully examine the peripheral blood smear for any abnormal lymphoid cells.

Note that tumor lysis syndrome manifests as a rapid rise in potassium, phosphorus, and uric acid and a drop in calcium; this can lead to a sudden death from electrolyte abnormalities.

Radiologic staging studies include chest radiography and computed tomography (CT) scanning of the chest, abdomen, and pelvis. Bone, gallium, and PET scans, as well as plain films, may be helpful in selected patients.


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