A system to induce hyperthermia in a selected portion of the body utilizes a variety of conductive conductive buttons positioned at a location proximate the target tissue to be heated, such as a tumor. The conductive button is exposed to a rotating permanent magnetic field that induces an eddy current on the surface of the conductive button. The conductive buttons can be implemented in a variety of different shapes and sizes. The conductive buttons can also be implemented from a variety of different metallic materials such as gold, silver, aluminum, copper or alloys. In one embodiment, the conductive buttons are partially coated with an insulating layer to direct the heat in a desired direction.
