TENNESSEE: lisa Marie Presley is in bad health . Sources say the 45-year-old singer’s throat is so severely ravaged that a medical expert says the damage could lead to deadly esophageal cancer. “Lisa Marie has suffered from acute throat problems for at least 10 years, and they only seem to be getting worse,” a close pal revealed to the National Enquirer. “In the past, her throat acted up only when she was touring or working extra hard in the studio. But now, it seems that the day-to-day stress of family life coupled with traveling is making the problem a lot worse.”–SY