Section 61
Chapter 60,001

Mycoplasma hyorhinis swine arthritis. II. Morphologic features

Ennis, R.S.; Dalgard, D.; Willerson, J.T.; Barden, J.A.; Decker, J.L.

Arthritis and Rheumatism 14(2): 202-211


ISSN/ISBN: 2326-5191
PMID: 5549969
DOI: 10.1002/art.1780140203
Accession: 060000098

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Mycoplasma hyorhinis arthritis, induced in young Yorkshire swine, can be considered as a three-stage process. The first 3 weeks of the disease were characterized by a severe polyserositis and mild synovitis. In the second stage, mononuclear cell infiltration of the synovium and other tissues was apparent. In the final stage, beginning about 3 months after inoculation, lymphocytic aggregates had become nodular, synovial hypertrophy was pronounced, and bone and cartilage destruction by pannus was common. Continued activity was apparent to Day 224.

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