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AI InsightOn the basis of histopathologic and immunohistochemical features, the tumor was diagnosed as anextraskeletal chondroblastic osteosarcoma.
📌 3 Maddede Bu Makale
Abstract
A 10-year-old spayed female Maltese dog presented to a local animal hospital with a subcutaneous mass (4 × 3 × 3 cm) inthe right shoulder region. The mass was well circumscribed, with soft tissue opacity and variable levels of mineralization, but with nobony involvement in radiography. The mass was surgically removed. Upon histological examination, the mass consisted of malignantmesenchymal cells that had produced a chondroid matrix and osteoid. Round to polygonal neoplastic cells with large nuclei showedmoderate anisokaryosis and variable numbers of mitotic figures. The tumor cells were positive for vimentin and osteocalcin and negativefor pancytokeratin, S100, and C-kit. On the basis of histopathologic and immunohistochemical features, the tumor was diagnosed as anextraskeletal chondroblastic osteosarcoma.