A method of treating abnormal tissue within a patient includes positioning a delivery cannula within the patient, the delivery cannula having a first electrode disposed on its distal end introducing an ablation probe through the cannula and out an open distal end thereof, so that a second ablation electrode carried on the ablation probe contacts abnormal tissue within the patient conveying ablation energy between the first and second ablation electrodes to ablate the abnormal tissue and introducing a separate medical element, whether a device or a therapeutic agent, through the cannula before or after the ablation process.
