Bone Metastasis  At the U-M Comprehensive Cancer Center,
treatment of bone metastasis takes place in the clinic where the
originating cancer is treated. For example, if prostate cancer
has metastasized into the bone, it is treated in the Urologic
Oncology Clinic. View our Cancer Center Clinics List to find the
clinic you need.  What is Bone Metastasis?  The bone is a common
site for metastasis. Bone metastasis or "bone mets" occurs when
cancer cells from the primary tumor relocate to the bone.
Prostate, breast, and lung cancers are most likely to spread to
the bone. However, other cancers are not excluded. Bone
metastases do not begin from the bones but move there from the
primary tumor site. On the other hand, primary bone cancers are
rare cancers where the primary tumor actually starts in the
bone. Therefore, bone cancer and bone metastases are not the
same.  As an example, consider a patient with prostate cancer.
Prostate cancer cells from the primary tumor can break away and
get into the bloodstream. Once