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April 1988

Isolation of Mycoplasma pneumoniae From Synovial Fluid Samples in a Patient With Pneumonia and Polyarthritis

Author Affiliations

From the Departments of Microbiology (Dr Davis), Internal Medicine (Division of Infectious Diseases and Rheumatology) (Drs Davis, Cochran, Lisse, Weber, and Reinarz), and Pathology (Drs Buck and DiNuzzo), University of Texas Medical Branch, Galveston.

Arch Intern Med. 1988;148(4):969-970. doi:10.1001/archinte.1988.00380040209029

• A patient with a long history of arthritis developed pneumonia. Two weeks into her hospital course, the patient developed effusions in her knee and wrist that yielded cultures positive for Mycoplasma pneumoniae. To our knowledge, this is the third reported case of M pneumoniae isolation from a joint and the first report of isolation of M pneumoniae from two joints in a patient without hypogammaglobulinemia. The evidence suggests that in individuals with atypical pneumonia and joint effusions, M pneumoniae should be considered as a source of infection.

(Arch Intern Med 1988;148:969-970)

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