Bone marrow and blood involvement by lymphoma in relationship to the lukes—collins classification

Kathy Foucar, Robert W. McKenna, Glauco Frizzera, Richard D. Brunning

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The incidence, pattern, extent, and morphology of bone marrow involvement in 176 cases of non‐Hodgkin's lymphoma (NHL) were studied in relationship to the Lukes‐Collins classification. Ninety percent of the cases were B‐cell lymphomas; 10% were T‐cell lymphomas. In 53% of cases there was bone marrow involvement by lymphoma at diagnosis. Marrow involvement was most frequently found in the small lymphocyte (B), small cleaved follicular center cell (FCC), and convoluted lymphocyte lymphomas. Frequently, the extent of bone marrow biopsy replacement by lymphoma was less than 30%; the pattern of infiltration was predominantly focal (70%). Cytologic agreement between lymph node and bone marrow specimens was always present in small lymphocyte (B), small noncleaved FCC, convoluted lymphocyte, and lymphoepithelioid cell lymphomas. Cytologic diversity between lymph node and marrow was noted in 20% of small cleaved FCC, 40% (2/5) of large cleaved FCC, and 38% (3/8) of large noncleaved FCC lymphomas. In 79% of all involved cases, both bone marrow biopsy sections and aspirate smears were diagnostic of NHL; only biopsy sections were positive in 18%, and only smears were positive in 3%. The Lukes‐Collins classification predicts a high incidence of bone marrow involvement for small lymphocyte (B), small cleaved FCC, and convoluted lymphocyte lymphomas.

Original languageEnglish (US)
Pages (from-to)888-897
Number of pages10
Issue number5
StatePublished - Mar 1 1982


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