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Splenic marginal zone lymphoma. A distinct B-cell neoplasm
R D Hammer1, A D Glick, J P Greer
1Department of Pathology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA.
The American Journal of Surgical Pathology
|May 1, 1996
Summary
Splenic marginal zone lymphoma is a rare B-cell neoplasm. This study details its distinct clinical, morphological, immunological, and ultrastructural features in 14 patients.
Area of Science:
- Hematology
- Oncology
- Immunology
Background:
- The splenic marginal zone represents a unique B-cell compartment.
- Lymphomas originating from this zone are infrequently encountered.
Purpose of the Study:
- To characterize the morphologic, immunologic, and clinical aspects of splenic marginal zone lymphoma.
- To differentiate these lymphomas from other small B-cell neoplasms.
Main Methods:
- Analysis of 14 patient cases.
- Morphological, immunological, and ultrastructural examination of neoplastic cells.
- Assessment of clinical presentation and disease spread.
Main Results:
- Patients (35-79 years) presented with uniformly enlarged spleens and frequent extra-splenic involvement (12/14).
- Neoplastic cells exhibited ultrastructural resemblance to normal marginal zone cells.
- Immunophenotyping confirmed B-cell origin with light chain restriction and consistent Bcl-2 expression.
Conclusions:
- Splenic marginal zone lymphoma is a distinct B-cell neoplasm.
- It possesses unique clinical, morphological, immunological, and ultrastructural characteristics.
- Further research is warranted to fully understand its pathogenesis and behavior.