News of White House spokesman Tony Snow's colon cancer relapsehas drawn increased attention to the second-leading cancer killer.Here, experts answer some key questions:
Q How serious is a recurrence of cancer?
Though patients often can be cured of their original tumors,cancers that grow back are much harder to eradicate, said LeonardSaltz, a colorectal cancer expert at New York's Memorial Sloan-Kettering Cancer Center.
Most relapses occur within 2 1/2 to 3 years after the originaltumor. If a tumor doesn't return within five years, many doctorsconsider the patient cured.
Q Was Snow at a higher risk for colon cancer?
Yes. Snow's mother died …