Background The most common oral tumors of dogs, in descending order of frequency, are malignant melanoma, squamous cell carcinoma, fibrosarcoma, osteosarcoma, and acanthomatous ameloblastoma. Each of these tumors has significant potential to invade surrounding tissues, including bone. These tumors vary significantly in their metastatic potential. While, malignant melanomas have a high metastatic potential, squamous cell [...]