Peer-reviewed veterinary case report
Dog with rare bone tumor and lung spread treated with radiation
By Sarah K. Samuels et al.·Published in Frontiers in Veterinary Science·2021·Department of Veterinary Clinical Sciences, The Ohio State University, Columbus, OH, United States, CH·View original on DOAJ →
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Original publication title: Case Report: Metastatic Parosteal Osteosarcoma in a Dog
- Species:
- dog
Plain-English summary
An 8-year-old Labrador retriever was brought in for a mass on his right elbow. X-rays and a CT scan revealed a bone tumor and a small lung nodule. After a biopsy confirmed it was a type of bone cancer called parosteal osteosarcoma, the dog received a specialized radiation treatment that helped manage his pain for over a year. Eventually, he needed to have his leg amputated due to increasing discomfort, but he lived for nearly two years after his diagnosis, showing that treatment can help manage this serious condition.
People also search for: dog elbow mass · Labrador bone cancer treatment · parosteal osteosarcoma in dogs · dog lung nodule · dog amputation recovery
Abstract
This case report describes a rare form of malignant bone tumor in an 8-year-old Labrador retriever. This dog initially presented for evaluation of a right distal humeral mass. Radiographs of the right elbow and thorax were performed, revealing a smooth mineralized mass adjacent to the lateral aspect of the distal humerus and a 5mm pulmonary nodule. Computed tomography (CT) of the humerus and thorax showed a smooth mineralized lesion adjacent to the lateral humeral epicondyle, and a right cranial lung lobe nodule with a thin mineral rim. Surgical biopsies of both lesions were diagnostic for parosteal osteosarcoma (POSA). The dog was then treated with stereotactic body radiation therapy (SBRT) which controlled the dog's discomfort for 14 months until he became progressively painful and subsequently had his right forelimb amputated. This case report is the first to document the CT imaging characteristics of a metastatic appendicular POSA in a dog and the first dog described with POSA treated with SBRT. The dog lived for 623 days after histopathologic diagnosis and 849 days after initial presentation with pulmonary metastatic disease.
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Search related cases →Original publication on DOAJ: https://doi.org/10.3389/fvets.2021.715908