Pathology
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Atlas of Bone Marrow pathology
Mojmir Moulis, Josef Feit et al.
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+ Introduction
+ Support
+ Bone Marrow Pathology
Reactive Plasmacytosis
Etiology, pathogenesis
  • prolonged antigen stimulation: allergic or autoimmune disorders, tumorous diseases etc.
Histology

Bone marrow is normo- or hypercellular with normal or reactively changed hematopoiesis depending on the etiological agent. The marrow also contains increased numbers of perivascular mature plasma cells These cells are polyclonal (the kappa:lambda ratio is normal, i.e. 2:1).