PRIMARY OSTEOSARCOMA DISTAL TO THE ANTEBRACHIOCARPAL AND TARSOCRURAL JOINTS IN 9 DOGS (1980-1992)

The medical records of nine dogs with primary osteosarcoma distal to t he antebrachiocarpal or tarsocrural joint were reviewed. Eight of the nine dogs were treated with surgical removal of the primary tumor; Sev en received adjuvant chemotherapy; and one dog was treated with chemot herapy alone. Median survival of dogs in this series was 466 days. Six of the nine dogs died of causes attributable to osteosarcoma, and bot h skeletal and pulmonary metastases occurred. Survival of dogs with os teosarcoma distal to the antebrachiocarpal or tarsocrural joint was so mewhat longer than survival of dogs with osteosarcoma of more common a ppendicular sites. However, these are aggressive tumors with a high po tential for metastasis.