NEW YORK (CNNMoney.com) -- Recently ousted Hewlett-Packard chairwoman Patricia Dunn has been advised she should begin medical treatment for a recurrence of advanced ovarian cancer, according to two published reports.

Dunn's medical condition was reported Wednesday by the San Jose Mercury News and the Los Angeles Times. The Times reported Dunn will begin treatment Friday at UC San Francisco Comprehensive Cancer Center.

Dunn resigned her post as head of the HP (Charts) board Sept. 22, under mounting pressure due to the company's probe into board leaks, which included possibly illegal tactics by investigators, including accessing personal phone records through impersonation, a technique known as "pretexting."

Dunn has faced cancer in the past, according the the News, including breast cancer and melanoma. She was diagnosed with advanced ovarian cancer in 2004 and underwent surgery for it earlier this year after experiencing a recurrence.

Last week lawmakers grilled Dunn and HP chief executive Mark Hurd, who has since filled Dunn's position as chairman, about the company's controversial spying program.

Dunn served as the co-chairman, chairwoman and CEO of Barclays Global Investors from 1995 through 2002, and assumed a director position on the board of HP in 1998. Last month she was inducted into the Bay Area Business Hall of Fame.

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