Which condition is a malignant tumor of the bone arising from connective tissue?

Which condition is a malignant tumor of the bone arising from connective tissue?

• A. Kyphosis
• B. Osteosarcoma
• C. Osteoarthritis (OA)
• D. Arthritis

Answer: (B)

A malignant bone tumor from connective tissue is osteosarcoma. This cancer comes from mesenchymal cells that form bone, specifically the osteoblasts that create bone matrix. Osteosarcoma is a true sarcoma of bone, often producing osteoid and typically affecting long bones near growth plates in adolescents, reflecting its aggressive, malignant nature. The other conditions aren’t malignant bone tumors: kyphosis is an abnormal curvature of the spine, osteoarthritis is a degenerative wear-and-tear disease of joint cartilage, and arthritis is general joint inflammation.

A malignant bone tumor from connective tissue is osteosarcoma. This cancer comes from mesenchymal cells that form bone, specifically the osteoblasts that create bone matrix. Osteosarcoma is a true sarcoma of bone, often producing osteoid and typically affecting long bones near growth plates in adolescents, reflecting its aggressive, malignant nature.

The other conditions aren’t malignant bone tumors: kyphosis is an abnormal curvature of the spine, osteoarthritis is a degenerative wear-and-tear disease of joint cartilage, and arthritis is general joint inflammation.