Osteosarcoma is the most common type of primary bone cancer in young adults. It is an “aggressive” tumor, meaning it likes to grow and move quickly if not addressed.
The Science: This cancer starts in Osteoblasts, which are the cells that build new bone. Instead of making healthy bone, these cells produce “osteoid”, a type of immature, weak bone tissue that forms a tumor.
Common Locations: It most frequently appears in the “metaphysis,” the growing part of the bone near the joints. This is why many young adults find tumors near the knee (lower femur or upper tibia) or the shoulder (upper humerus).
The Age Factor: Because osteosarcoma is linked to rapid bone growth, it often peaks during the growth spurts of late adolescence, but it remains a primary concern through the mid-30s.
Source: MD Anderson – Childhood Osteosarcoma Overview
Disclaimer: The Cyrus Desai Charitable Foundation provides this information for educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your oncologist or other qualified health provider with any questions you may have regarding a medical condition.