Canine perivascular wall tumors with bone metastasis of the proximal humerus in a Golden Retriever dog
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Abstract
A 10-year-old male Golden Retriever dog presented with a two-week history of right forelimb lameness and shoulder pain. Initial examination revealed knuckling and muscle atrophy. Radiography and computed tomography scan results revealed severe osteolysis at the proximal humerus. Forequarter amputation was performed, and a bone biopsy confirmed a perivascular wall tumor with bony metastasis. Adjuvant metronomic chemotherapy was administered. Two months postoperatively, diffuse pulmonary nodules and visceral masses were detected, with no local recurrence. Despite palliative care, the dog succumbed to the disease 169 days after the initial diagnosis. This case underscores the aggressive nature of perivascular wall tumors and the challenges in managing advanced metastatic disease. Early detection and aggressive therapy are crucial for better outcomes in similar cases in veterinary practice.
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