Patient Information: How RFA Works

September 9, 2008 Diagnostic Imaging. Patient Information: How RFA Works -------------------------------------------------------------------------------- At its most basic, tumor ablation is a method of destroying a tumor without major surgery. A needle electrode inserted inside the tumor produces either extreme heat or extreme cold, which destroys the tumor from the inside out. The treatment is focused on a very small area, so only the tumor itself is affected. Your doctor may also choose to treat a small margin of tissue around the tumor to prevent a recurrence. The majority of healthy tissue in the organ is unharmed. Because RFA is the most common method of destroying tumors, we'll look at the equipment and procedure for this method.

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