Radiodiagnosis of hypertrophic osteodystrophy in a Brazilian mastiff dog
Case report
DOI:
https://doi.org/10.31533/pubvet.v18n04e1576Keywords:
Brazilian Mastiff, dog, hypertrophic osteodystrophy, radiodiagnosisAbstract
Hypertrophic osteodystrophy is an idiopathic bone disorder of unknown etiology that affects young dogs of large and giant breeds. This disorder is associated with factors such as excessive vitamin supplementation, hypovitaminosis C, and infectious microorganisms. Clinical manifestations include fever, lameness, painful sensitivity, and varied systemic symptoms. Radiographic signs reveal radiotransparent areas adjacent to the growth plates of long bones. This case report addresses the radiodiagnosis of hypertrophic osteodystrophy in an 8-month-old Brazilian Mastiff female, initially presenting kyphotic deviation of the spine, hyporexia, soft stool, weakness and muscular atrophy. Laboratory tests indicated alterations in protein levels, alkaline phosphatase, cholesterol, calcium, and phosphorus. Radiographs showed bone lysis in the epiphysis and non-union of the anconeal process. The adopted treatment included dietary correction, and vitamin and mineral supplementation. Although the etiology remains unknown, genetic, infectious, and dietary factors are considered predisposing. Characteristic radiographic signs include the appearance of a double physis, necrosis due to the collapse of trabecular bone, and periosteal reactions. Treatment, focused on diet correction and supplementation, resulted in clinical improvement and partial remission of radiographic signs.
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