"Dana's mother died of ovarian cancer. Where are the violins for her? Lung cancer/ovarian cancer -- just as tragic."
I don't think anyone said otherwise. All cancer is potentially deadly. Dana's mother died of cancer. That increased Dana's chances greatly that she too might die of cancer. There is a strong genetic connection for cancer. I'd go with that as a reason for her death from cancer over any second hand smoke theories from working in bars years before she ever contracted it. Combine stress because of her husband's situation w/genetic proclivities, and I believe that is what did her in. RIP.
When my sister had ovarian cancer, they actually sent some of her tumor to Vanderbilt to be "typed" to see if her cancer was genetic or not.