Osteosarcoma is best described as which?

Osteosarcoma is best described as which?

• A. Benign bone lesion
• B. Malignancy of cartilage
• C. Malignant tumor of muscle
• D. Primary malignant tumour of bone

Answer: (A)

Osteosarcoma is a malignant tumor that originates in bone and produces osteoid matrix. This makes it a primary malignant tumour of bone—the most common type of cancer arising anew in bone tissue. It is not a benign bone lesion, nor a cartilage tumor (that would be chondrosarcoma), nor a muscle tumor (that would be rhabdomyosarcoma).

Osteosarcoma is a malignant tumor that originates in bone and produces osteoid matrix. This makes it a primary malignant tumour of bone—the most common type of cancer arising anew in bone tissue. It is not a benign bone lesion, nor a cartilage tumor (that would be chondrosarcoma), nor a muscle tumor (that would be rhabdomyosarcoma).