Osteosarcoma
Definition
Osteosarcoma is the most common type of cancer that originates in bone. (Most bone cancer develops from cancerous cells that have migrated from a tumor in another organ referred to as the primary site). It may also be called osteogenic sarcoma or primary bone cancer.
Description
Osteosarcomas make up about 65% of primary bone cancers and account for about 10% of all childhood cancers. Tumors around the knee (most often just above it) account for almost 75% of osteosarcomas; tumors in the long bone of the upper arm are also relatively common....
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