Michael Douglas has vowed to "beat" throat cancer.

The 'Wall Street: Money Never Sleeps' actor - who has two children Dylan, 10, and seven-year-old Carys with wife Catherine Zeta Jones, as well as 31-year-old Cameron with former spouse Diandra - was diagnosed with a tumour in his throat last month and is now set to undergo eight weeks of radiotherapy and chemotherapy in the hope of ridding his body of the disease but remains positive about his prognosis.

The 65-year-old star told People magazine: "I'll beat this."

While doctors expect the Oscar-winning actor to make a full recovery, medical experts have warned he may never act again, as the aggressive combination of radiation and chemotherapy could result in him losing his voice.

Dr. Lawrence Tena, a physician in the department of radiation and oncology at the Beth Israel Comprehensive Cancer Center in New York City, recently explained: "When a patient is getting radiation and chemotherapy combined, they typically have an advanced stage of cancer. Sixty to 70 percent of patients, even with advanced cancers, survive."

However if the procedures fail to work, Michael will have to undergo a full or partial laryngectomy, which could leave him with a changed voice, or even no voice at all.