Plasma cell pneumonia induced by Legionella pneumophila.


We report a case of severe Legionella pneumonia in which the histopathologic features of an open lung biopsy specimen were characterized by a monotypic plasma cell infiltrate and absence of granulocytes or other acute inflammatory cells. The clinical course was otherwise typical for a severe case of Legionella pneumonia with complete functional and roentgenographic recovery following a prolonged convalescence. We speculate on possible reasons for this patient's unusual histopathologic features.

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@article{Walsh1991PlasmaCP, title={Plasma cell pneumonia induced by Legionella pneumophila.}, author={John J. Walsh and Jason Kelley}, journal={Chest}, year={1991}, volume={100 4}, pages={1170-2} }