[[Image:Panosteitis.jpg|right|thumb|100px|<small><center>Panosteitis (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]]
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*Typically young large or giant breeds
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*75% of cases in German shepherd dogs, 5-12 months old
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*Clinical signs:
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**Shifting lameness
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**Often eosinophilia in peripheral blood
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*Usually self-limiting in one to several months
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*Grossly:
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**Foreleg long bone '''diaphyses''' affected (multiple bones in 50% of cases)
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**Increased bone formation in the medullary cavity and often in the periosteum
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*Contast with [[Bones Hyperplastic and Neoplastic - Pathology#Hypertrophic osteodystrophy|'''hypertrophic osteodystrophy''']]