Primary lymphoma of bone. Correlation of magnetic resonance imaging features with cytokine production by tumor cells

David G. Hicks, Regis J. O'Keefe, Randy N. Rosier, Joshua Z. Sickel, Alexander R. Judkins, Takehiko Gokan, Saara M.S. Totterman, Patrick J. Fultz, Steven P. Meyers, Deborah J. Rubens

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78 Scopus citations

Abstract

Background. Primary lymphoma of bone is a rare, aggressive neoplasm that can present with a large, soft‐tissue mass despite minimal evidence of cortical destruction on plain radiographs. Methods. High resolution magnetic resonance imaging (MRI) examinations of four patients with primary lymphoma of bone were reviewed retrospectively, and in each case intramedullary tumors demonstrated “penetrating channels” extending through the cortex. The MRI studies were correlated with the histopathologic assessment of the tumor for each patient. Immunohistochemistry was performed for immunophenotyping and for cytokine expression by tumor cells. The cytokines that were investigated were interleukin‐1, interleukin‐6, and tumor necrosis factor‐alpha, molecules known to regulate osteoclastic activity. Results. The linear cortical foci noted on MRI correlated with the histopathologic findings of tumor‐associated cutting cones, in proximity to osteoclastic bone resorption. Immunohistochemical stains showed a B‐cell phenotype for each tumor and positive immunoreactivity in tumor cells for cytokine mediators that stimulate osteoclastic activation. Conclusions. These findings indicate that the tumor cells in these cases produce soluble cytokine mediators that may regulate extensive osteoclastic activity. In primary lymphoma of bone, tumor activation of osteoclastic resorption, with production of tumor tunnels through the cortex, may represent one of the mechanisms by which lymphoma escapes the intramedullary space and forms large, soft‐tissue masses without extensive cortical destruction. Cancer 1995;75:973‐80.

Original languageEnglish
Pages (from-to)973-980
Number of pages8
JournalCancer
Volume75
Issue number4
DOIs
StatePublished - Feb 15 1995

Keywords

  • bone
  • cytokines
  • immunocytochemistry
  • lymphoma
  • magnetic resonance imaging
  • radiographs

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