A 34-month-old, male, WI/HicksCar rat presented for necropsy as part of a study on aging. Antemortem examination revealed bilaterally symmetrical swelling of both metatarsal regions. On the basis of radiographs, the swelling was determined to be new periosteal bone growth, consistent viith hypertrophic osteopathy. Necropsy confirmed the diagnosis and revealed numerous lesions associated with hypertrophic osteopathy, including congestive heart failure, granulomatous pneumonia, and intrathoracic and extrathoracic neoplasia, Spontaneous hypertrophic osteopathy has not previously been reported in rodents.
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Univ Calif Davis, William R Pritchard Vet Med Teaching Hosp, Sch Vet Med, Davis, CA 95616 USAUniv Calif Davis, William R Pritchard Vet Med Teaching Hosp, Sch Vet Med, Davis, CA 95616 USA
Withers, S. S.
Johnson, E. G.
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Univ Calif Davis, Sch Vet Med, Dept Surg & Radiol Sci, Davis, CA 95616 USAUniv Calif Davis, William R Pritchard Vet Med Teaching Hosp, Sch Vet Med, Davis, CA 95616 USA
Johnson, E. G.
Culp, W. T. N.
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Univ Calif Davis, Sch Vet Med, Dept Surg & Radiol Sci, Davis, CA 95616 USAUniv Calif Davis, William R Pritchard Vet Med Teaching Hosp, Sch Vet Med, Davis, CA 95616 USA
Culp, W. T. N.
Rodriguez, C. O., Jr.
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Univ Calif Davis, Sch Vet Med, Dept Surg & Radiol Sci, Davis, CA 95616 USAUniv Calif Davis, William R Pritchard Vet Med Teaching Hosp, Sch Vet Med, Davis, CA 95616 USA
Rodriguez, C. O., Jr.
Skorupski, K. A.
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Univ Calif Davis, Sch Vet Med, Dept Surg & Radiol Sci, Davis, CA 95616 USAUniv Calif Davis, William R Pritchard Vet Med Teaching Hosp, Sch Vet Med, Davis, CA 95616 USA
Skorupski, K. A.
Rebhun, R. B.
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Univ Calif Davis, Sch Vet Med, Dept Surg & Radiol Sci, Davis, CA 95616 USAUniv Calif Davis, William R Pritchard Vet Med Teaching Hosp, Sch Vet Med, Davis, CA 95616 USA