A radio frequency (RF) treatment flexible endoscope, for the in depth destruction of tumors by endo luminal access, like in a lung, esophagus, colon, rectum, etc . . . The electrodes (2&prime；,2&Prime；) working in bipolar mode, deploy laterally and in parallel from the endoscope main body (1), reaching a tumor deeply located in the organ parenchyma. The use of different disposable distal end portions (15) of the endoscope allows the deployment of the electrodes (2&prime；,2&Prime；) at different distances one from each other, in order to fit the destruction are to the tumor's size and shape. The deployment of the parallel electrodes (2&prime；,2&Prime；) from the endoscope's main body (1) is controlled by motor drives (4) or a mechanical handled system (3), in order to reach the tumor with near a millimeter precision. In order to fix the endoscope's distal end to the tissue, so to allow a perfect parallel deployment of the electrodes, an inflating cuff (5) is placed at the opposite side of the distal end, as well as a suction system, with its holes (21) placed near the electrodes' deployment location. An external RF generator and a imaging system are associated to the use of the device.
