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Chronic lymphocytic leukaemia with binucleated lymphocytes
I Amouroux1, H Mossafa, O Gentilhomme
1Laboratoire d'Hématologie Biologique, Hôpital Antoine BéclèneClamart, Lyon, France.
Leukemia & Lymphoma
|February 26, 1998
Summary
This study identifies binucleated lymphocytes in four chronic lymphocytic leukemia (CLL) patients, suggesting a potential new CLL subtype. Trisomy 12 was observed in some cases, linking it to atypical CLL morphology.
Area of Science:
- Hematology
- Oncology
- Cell Biology
Background:
- Chronic lymphocytic leukemia (CLL) is a mature B-cell malignancy.
- CLL exhibits distinct morphologic subtypes based on cellular features.
- Binucleated lymphocytes are not a recognized feature in typical CLL.
Purpose of the Study:
- To investigate the presence and characteristics of binucleated lymphocytes in CLL patients.
- To determine the immunological and cytogenetic profile of CLL cases with binucleated lymphocytes.
- To explore the potential for a novel CLL entity characterized by binucleated cells.
Main Methods:
- Immunological profiling of patient samples.
- Cytogenetic analysis (including detection of trisomy 12).
- Morphological assessment of lymphocytes.
Main Results:
- Four patients diagnosed with CLL exhibited a significant presence of binucleated lymphocytes.
- Two of these four patients showed trisomy 12, a known marker for atypical CLL morphology.
- Immunological and cytogenetic data were analyzed for these unique cases.
Conclusions:
- The presence of binucleated lymphocytes may represent a previously undescribed morphologic variant of CLL.
- Trisomy 12 is associated with this atypical CLL presentation.
- Further research is warranted to classify this finding as a distinct CLL entity.