• Journal of Veterinary Clinics
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• v.34 no.6
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• pp.470-473
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• 2017

An eight-year old neutered male miniature pinscher dog was referred with a mass on the right frontal region. Radiography, computed tomography (CT) and magnetic resonance imaging (MRI) examination were performed. Imaging results showed mineralized mass invaded frontal bone without brain parenchymal change and distant metastasis. The mass was removed mostly by surgical resection, and the dog was discharged without any complications. On the histopathological examination, the mass was diagnosed as grade I multilobular osteochondrosarcoma. Though the mass recurred after the surgical resection, the dog is still alive to date without metastasis.

• Journal of Veterinary Clinics
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• v.39 no.5
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• pp.246-252
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• 2022

Multilobular osteochondrosarcoma (MLO) reportedly has a good prognosis after complete resection. This study reports the successful treatment of MLO in two dogs using 3-dimensional (3D) printing technology. A nine-year-old castrated male Maltese (Case 1) and a five-year-old castrated male poodle (Case 2) both presented with a mass in the skull. Diagnostic imaging revealed a cranial mass arising from the cranio-orbital and parieto-occipital bones. The masses were resected using 3D-printed osteotomy guides, and the resulting defects were reconstructed using 3D-printed patient-specific implants. Histopathological results confirmed the resection of MLOs with clean margins. Patients routinely recover from surgery without complications. To date, the two patients remain alive without clinical signs of tumor recurrence at 20 and 12 months postoperatively, respectively. In the management of MLO in dogs, 3D printing technology can allow accurate tumor resection, reduced surgical time, and successful reconstruction of large defects.