Michael Jackson's ex-wife Debbie Rowe is undergoing tests to see if she has cancer

Los Angeles -  Michael Jackson's ex-wife is undergoing tests to see if she has cancer.

Debbie Rowe - who was married to the late Thriller star for just under three years until October 1999 and had children Prince, 17, and Paris, 15, with him - will underwent a biopsy after medical examinations over the last few months have shown "irregularities" with her lymph nodes, and though her doctors are said to be "convinced" she has lymphoma, the 55-year-old nurse is confident she will be given the all-clear.

According to website TMZ, she said: "I'm too healthy to have cancer."

Michael died of acute Propofol intoxication in June 2009 and though Debbie is comfortable with undergoing a biopsy, she is "scared to death" of going under anaesthetic.

And she is said to have told doctors: "Propofol is out of the question."

In December, Debbie enjoyed a holiday with her son and daughter - who attempted suicide last June - in Hawaii, with their half-brother Blanket, 11, and their cousins Jermajesty and Jaafar Jackson also joining them on the festive break.

Debbie originally lost contact with her children after divorcing Michael in 1999, but has been getting closer to them over the last year, with the blessing of the Jackson family.