Osteogenic Sarcoma (osteosarcoma) is a bone forming cancer. It is the most frequent type of bone tumour and is most common between the ages of 15 to 25. Over 90% of tumours are located in the metaphysis (the growing ends of the bone), the most common sites are the bones around the knee which account for 80% of cases. Osteosarcomas vary greatly in radiological and pathological features and therefore needs careful diagnosis to differentiate this from other bone tumours. Most are high grade intramedullary osteosarcomas, about 5% are low grade lesions, some are secondary osteosarcomas (for example those caused by radiation therapy). (source: Cancerindex.net) The survival rate is currently 60-80% for this cancer. If you or someone you love is affected by this cancer you are in my thoughts and prayers. I am blessed to get to work with these children and their families. Please make sure you are working with a pediatric oncologist and pediatric oncology nurses and surgeons you trust and feel comfortable with. May you find strength and comfort.