While doing research on my husband's cancer, I found information that cancer cells are very smart and will quickly disburse if they feel threatened. This has caused me to conclude that even biopsies can be harmful. Modern medical treatments are not necessarily the best. For instance, when I contracted ring worm of the scalp at the age of 4 or 5 (in the late l940's), the treatment was to xray my head (and all my hair fell out). My Dad was an MD, so this was the "latest" treatment. When I was in my 40's, I got a large basal cell carcinoma on my scalp..... Had it removed and no recurrence.