Video: How Cancer Spreads
This video shows how a type of skin cancer called melanoma can metastasize. Although the appearance of cancer cells and the way they spread varies depending on the type of cancer, the general concepts shown here are useful in understanding how any cancer can spread. Keep in mind that not all cancers metastasize...
http://www.mayoclinic.com/health/cancer/MM... 28, 2010
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good question Clark... I need the answer to that.... I know in my family uteran cancer for the women and prostate cancer in our men.... I say environmental hazards as well as hereditary factors come into play.... Now my oldest brother died from leukemia and the funny thing is .... we do not have those factors in our family.... and too he had a rare blood type... He did not match anyone in our family.... he was B+...