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 ORIGINAL ARTICLE
Year : 2009  |  Volume : 46  |  Issue : 1  |  Page : 40-45

Prognostic significance of bone marrow histology in multiple myeloma


1 Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India
2 Department of Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India

Correspondence Address:
R Subramanian
Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0019-509X.48594

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Background: Bone marrow examination continues to be the cornerstone for establishing the diagnosis of multiple myeloma in association with other clinical and laboratory parameters. Plasma cell morphology has significant correlation with clinical stage and survival. Aims: To note the bone marrow histology in detail in multiple myeloma and to correlate it with clinical stage and survival. Methods and Material: Fifty-five cases of multiple myeloma diagnosed between January 2001 and December 2006, who had a bone marrow aspiration and biopsy done at the time of diagnosis were included in the present study. Statistical Analysis: SPSS software version 13.0 was used. Clinical stage and plasma cell morphology were correlated using chi square test and Spearman's correlation coefficient. Survival analysis was done using the Kaplan-Meier method. Results: Seventy-six percent patients were in clinical stage III, 17% and 7% were in stage II and I respectively. The clinical stage correlated significantly with plasma cell morphology, percentage of plasma cell infiltration and pattern of infiltration. Plasma cell morphology correlated significantly with bone marrow parameters like percentage infiltrate, pattern of infiltration, degree of fibrosis and mitotic activity. Patients in advanced clinical stage, >50% plasma cells in the marrow, diffuse pattern of infiltration, high mitosis and increased fibrosis had a shorter median survival than patients with favorable features. Conclusions: It is recommended that the bone marrow histology be studied in detail in multiple myeloma at diagnosis since it correlates well with the clinical stage and offers useful prognostic information.






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