Veterinary Technician Practice Exam

What type of tumor is osteosarcoma?

1. Benign tumor in soft tissue

2. Malignant tumor originating in bone

3. Malignant tumor in the lymphatic system

4. Benign tumor in epithelial tissue

The correct answer is: Malignant tumor originating in bone

Osteosarcoma is classified as a malignant tumor that originates in bone. This type of cancer arises from the osteoblasts or bone-forming cells, leading to aggressive growth and the potential to invade surrounding tissues and metastasize to other parts of the body, particularly the lungs. The diagnosis of osteosarcoma is typically associated with significant clinical implications, including pain and swelling in the affected area, and it often requires a combination of surgical intervention and adjunct therapies such as chemotherapy for treatment. Understanding the characteristics of osteosarcoma is critical for veterinary technicians, as they play an essential role in assessing, diagnosing, and managing patients with this type of cancer. Recognizing that this tumor is malignant is vital because it informs the treatment approach and helps in communicating the prognosis to pet owners. The other options describe types of tumors that do not align with the definitive classification of osteosarcoma. Benign tumors, whether in soft tissue or epithelial tissue, do not exhibit the aggressive characteristics inherent to osteosarcoma. Similarly, a malignancy originating in the lymphatic system refers to different types of cancers, such as lymphomas, which are distinct from bone cancers. Understanding these distinctions is important in veterinary oncology.