It was reported that the 50-year-old was recently diagnosed with the condition after doctors spotted signs of cancer on his neck and pre-cancerous cells on his face.
But Jackson's spokesperson Tohme insists that the news is "not true", reported femalefirst.co.uk.
"He is great. He's in perfect health and doesn't have any diseases whatsoever. He is in the best of health,” said Tohme.
Published 18 May 2009, 05:50 IST