Barb,
There are a few options. There is one policy that a friend of mine had that was sold to cancer patients but it wouldn't pay until after the 3rd year of survival. It was about $75/month and paid $100,000. Unfortunately, he only made it 2 years and 3 months. I was quoted a policy a month after finishing treatment, they took my money and then a month later they sent it back saying they would reinstate it after 2 years in a high risk pool for 2 years. I will be elligible OCtober 8 this year and plan to pursue it. It was about $60/month for $100,000.
Another option is to find a job that offeres a group plan. In most cases, when you start working for a company you are elligible in their group plan and can get a certain amount without any medical questions. It is usually capped at $50,000 or $100,000.
There are also viatical companies as Bob suggests that will pay cash for your policy provided you have a terminal diagnosis or a serious diagnosis. They usually pay 30% of the face value or less.
Ed