What's the difference between an enchondroma and a chondrosarcoma?

What's the difference between an enchondroma and a chondrosarcoma?

An enchondroma is a benign (not cancerous) tumor. Sometimes, enchondromas can change into malignant (cancerous) tumors. A malignant cartilage tumor is called a chondrosarcoma. If you have just one enchondroma, this change is very rare. People who have multiple enchondromas have a higher risk of the tumors becoming malignant. Chondrosarcomas require immediate removal.