THE CHARACTTERISTICS OF B-CELL LYMPHOMAS INVOLVEMENT IN THE BONE MARROW

Tiêu Ngọc Kim Ngân1,, Lê Phương Thảo1, Phan Đặng Anh Thư2
1 Blood Transfusion Haematology Hospital
2 University of Medicine and Pharmacy at Ho Chi Minh City

Main Article Content

Abstract

Introduction: Bone marrow examination is an integral part of the clinical staging of lymphoma, also prognosis and therapeutic strategies. Objective: This study aimed to evaluate the incidence and characteristics of bone marrow involvement of B-cell lymphoma on trephine biopsy. Subjects and Methods: Cross section description of B-cell lymphoma from January 2019 to December 2020 at Blood Transfusion Hematology Hospital. The incidence and pattern of bone marrow involvement were analyzed. Results: The frequency of bone marrow involvement of B-cell lymphomas was 64.8%. Bone marrow involvement was present in 80% of low-grade B-cell lymphomas, and 40% of high-grade variants. The highest incidence of bone marrow involvement was seen in LPL and BL (100%) and the lowest was found in DLBCL (25.6%). Diffused pattern of infiltration was predominant (53%), followed by mixed pattern (31%). Typical bone marrow involvement in 50% FL and 10% DLBCL (transformed FL to DLBCL) was characterized by paratrabecular infiltration. Intrasinusoidal infiltration was not detected. The most frequent pattern was mixed pattern (72.2%) found in MZL. Conclusion: The frequency of bone marrow involvement of low-grade B-cell lymphomas was higher than high-grade variants. The pattern of diffuse infiltration was predominantly. 

Article Details

References

1. Arber D. A. , George T. I. (2005), "Bone marrow biopsy involvement by non-Hodgkin's lymphoma: frequency of lymphoma types, patterns, blood involvement, and discordance with other sites in 450 specimens", The American journal of surgical pathology. 29 (12), pp. 1549-1557.
2. Brunning R. D., McKenna R. W., Bloomfield C. D. et al. (1977), "Bone marrow involvement in Burkitt's lymphoma", Cancer. 40 (4), pp. 1771-1779.
3. Hassan K., Ikram N., Bukhari K. P. et al. (1995), "The Pattern of Bone Marrow Infiltration in Non-Hodgkin’s Lymphornas", .
4. Lambertenghi-Deliliers G., Annaloro C., Soligo D. et al. (1992), "Incidence and histological features of bone marrow involvement in malignant lymphomas", Annals of hematology. 65 (2), pp. 61-65.
5. Orazi A., Foucar K., Knowles D. et al. (2013), "Knowles neoplastic hematopathology", Lippincott Williams & Wilkins, pp. 399-583.
6. Shi Y. F., Li X. H., Song Y. Q. et al. (2015), "Involvement of bone marrow in lymphoma: pathological investigation in a single-center from northern China", International journal of clinical and experimental pathology. 8 (6), pp. 7102.
7. Swerdlow S. H., Campo E., Harris N. L. et al. (2016), "WHO Classification of Tumours of Haematopoietic and Lymphoid Tissues", pp. 216-344.
8. Yao Z., Deng L., Xu-Monette Z. Y. et al. (2018), "Concordant bone marrow involvement of diffuse large B-cell lymphoma represents a distinct clinical and biological entity in the era of immunotherapy", Leukemia. 32 (2), pp. 353-363.