Related Experiment Video
Updated: Jun 15, 2026

Enhancing Tumor Content through Tumor Macrodissection
Published on: February 12, 2022
Central nervous system involvement in diffuse large B-cell lymphoma
Wataru Yamamoto1, Naoto Tomita, Reina Watanabe
1Department of Hematology, Yamato Municipal Hospital, Yamato, Japan.
Background:
Malignant lymphoma with central nervous system (CNS) involvement has an extremely poor prognosis. We retrospectively studied the risk factors for CNS involvement in patients with diffuse large B-cell lymphoma (DLBCL) treated by cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP) or rituximab (R) -CHOP chemotherapy.
Patients And Methods:
We studied 375 consecutive patients who were newly diagnosed with DLBCL between 1996 and 2006. Patients with primary CNS involvement and patients who received CNS prophylaxis were excluded. All the patients received CHOP (n = 172) or R-CHOP (n = 203) chemotherapy. The following variables were assessed for their potential to predict CNS involvement: gender, age, serum lactate dehydrogenase (LDH) level, performance status, clinical stage, number of extranodal involvements, International Prognostic Index (IPI), bone marrow involvement, presence of a bulky mass, presence of B symptom, and treatment.
Results:
CNS involvement was observed in 13 cases (3.5%). In univariate analysis, LDH more than normal range, LDH more than twice as normal range, high IPI, bone marrow involvement, and systemic relapse were the predictors for CNS involvement. In multivariate analysis, no risk factors were detected for CNS involvement. The use of rituximab did not have an impact on CNS involvement.
Conclusions:
The incidence of CNS involvement does not decrease in rituximab-era.
Related Concept Videos
B Cell Activation and Differentiation
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
Primary Lymphoid Organs
The red bone marrow is a soft, spongy tissue nestled in the interior of long bones such as the humerus and femur. It is the site...
Secondary Lymphoid Organs
The spleen is a vital organ in the lymphatic system, nestled in the upper left side of the abdomen. It is composed of two primary regions: the red pulp and the white pulp, each having distinct functions. The red pulp performs a significant role in blood filtration. It efficiently purges the blood of old or damaged red blood cells and...
Lymphoid Cells and Tissues
Lymphoid cells consist of various types of immune system cells. These include B and T lymphocytes, which are responsible for producing antibodies and killing infected cells, respectively. Dendritic cells act as messengers between the innate and adaptive...
Cells of the Adaptive Immune Response