Reactive plasmacytosis. Case report and review of the literature.

The case history of a patient presenting with an acute myelogenous leukemia plus marked reactive plasmacytosis is summarized. Kinetic studies demonstrated a very high proliferative activity of the polyclonal plasma cell population in marked contrast to the very low proliferative activity observed in monoclonal gammopathies. These data are discussed and the published literature on reactive plasmacytosis is reviewed.