How can you get bone cancer because, do we even have any cells in our bones and how can they grow otherwise?

Question: How can you get bone cancer because, do we even have any cells in our bones and how can they grow otherwise?

Asked by alisonkatie to Iain, Jo, Leo on 24 Jun 2010 in Categories: Your Research.
- Iain Moal answered on 24 Jun 2010:
  
  Yes, our bones are made of cells and they are alive. They grow and divide just like normal cells, only they produce lots of mineral.
- Joanna Watson answered on 24 Jun 2010:
  
  Yes, you can get bone cancer. Unlike hair, our bones are living parts of our bodies and many of the cells are being replaced all the time. This happens to repair little bits of damage and to keep our bones strong.
- Leo Garcia answered on 24 Jun 2010:
  
  Yes – we have cells within our bones; in fact, five different kinds:
  
  http://en.wikipedia.org/wiki/Bone_cell
  
  which are used for bone repair, formation and development. Cancers can form within the bone, or have spread from tumours elsewhere in the body, in a process called ‘metastasis’. Chemotherapy and radiotherapy are often used to treat some kinds of bone cancer.

Question: How can you get bone cancer because, do we even have any cells in our bones and how can they grow otherwise?