Pennsylvania's lieutenant governor is undergoing intensive treatment for cancer.
Gov. Ed Rendell said Thursday that Lt. Gov. Catherine Baker Knoll has been at a cancer center in Baltimore for about two weeks.
The governor calls it a serious health challenge but says there is no prognosis. He says Knoll "hasn't given up."
The 78-year-old Knoll announced in August that she had been undergoing radiation and chemotherapy for neuroendocrine (noo-roh-END'-oh-krin) cancer.
The Democrat's term ends in 2011. Senate President Pro Tem Joe Scarnati will replace her if she can't complete the term.