Yes: When family members come down with different types of malignancies there might be a hereditary factor ie the BRACA gene for breast or a mutated APC gene for colon cancer that might be involved. Otherwise there is the question of whether there is a carcinogen present that family members may be exposed to. When MMTV virus causes breast Ca, husbands have a high incidence of prostate Ca from MMTV.
Answered 1/25/2015
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3 doctors weighed in across 2 answers
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