Kennedy's brain surgery is risky, doctors say

(AP) -- Targeted brain surgery like that planned Monday morning for Sen. Edward M. Kennedy is a delicate balance - removing as much tumor as possible improves cancer control, but there's also the risk of harming healthy brain tissue that lets patients walk and talk.

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<p><a href="http://www.physorg.com/news131620782.html">Kennedy's brain surgery is risky, doctors say</a></p> <p>(AP) -- Targeted brain surgery like that planned Monday morning for Sen. Edward M. Kennedy is a delicate balance - removing as much tumor as possible improves cancer control, but there's also the risk of harming healthy brain tissue that lets patients walk and talk.</p>