The Hollywood star has issued a statement to clarify comments he made in an interview with The Sunday Times.
The US comedian will undergo surgery to have part of one of her lungs removed, but insisted she should be "just fine".
Jennifer Aniston also shared a birthday tribute to her Friends co-star on Instagram.
The Brokeback Mountain star says he is “mesmerised” by judge Prue.
The Halloween star also revealed that she will officiate her daughter Ruby's wedding next year.
The pair said their friendship has "developed into an amazing relationship".