In women, the deposition of calcium into bone requires estrogen. Normally, the cells informing the bone cortex divide very rapidly from womb life through puberty, and then slow down dramatically during adult life. These areas are important to know since particular bone tumors have a predilection to arise in particular areas of the bone, as will be seen. The cells inside the bone marrow, which form the blood cells, must continue to divide very rapidly throughout life, since white blood cells may normally live as little as 10 hours. If there is damage to the genes.
Bone cancer starts in just one cell.
Cancer kills by anemia. infection and debility, and by spreading to and interfering with the function of critical body areas, such as the lung and brain. Cancers originating in other areas may have a strong predilection to spread to bone. The treatment for these when they have metastasized to bone is discussed under the transcripts dealing with those particular cancers. Also, some cancers arise from cells which normally live in bone, such as lymphomas, myelomas, plasmacytomas. and leukemias from the blood cells within the bone marrow. These are also discussed in their own transcripts, as they are not primary bone cancers.