What are bone cancer symptoms? what are the symptoms of bone cancer and how is bone cancer diagnosed?

There : There are many types of tumors that arise from bone, and many that arise from elsewhere but go to the bones and grow there. When we refer to "bone cancer" we usually mean a tumor that is malignant (can spread to other parts of the body) and that originates from cells that make the bone. Breast cancer for example can spread to bone and make a tumor there, but this tumor is composed of cells that arise from the breast tumor, not the bone, and so this is not truly a "bone cancer". Tumors of the bone are identified usually by one of two ways: the patient has pain at the site, or the patient breaks the bone through the tumor after a fall or other trauma. Bone tumors weaken the bone, and so sometimes even small traumas can break bones at the site of the tumor. Diagnosis is initially with an x-ray to show a lesion in the bone. This is usually followed with a biopsy of the bone if there is any concern that this lesion is anything but an obviously benign mass. The biopsy tissue is sent to a pathologist that looks at the tissue under a microscope and gives a diagnosis of what kind of tumor or "bone cancer" it is.

Depends: Please refer to this excellent resource for more details: http://www.Cancer.Net/cancer-types/bone-cancer.