Clinical ImagesTitle: Twenty-years’ use of expanded polytetrafluoroethylene sheet for an artificial cardiac pacemakerKenji Yorita1*, Junichi Takahashi2, Kazutoshi Tano3, Yoichi Ichikawa3, Nobumasa Hamaguchi4, Wataru Yasui51Department of Diagnostic Pathology, Japanese Red Cross Kochi Hospital, Kochi-city, Kochi, Japan2Department of Internal Medicine, Japanese Red Cross Kochi Hospital, Kochi-city, Kochi, Japan3Department of Cardiovascular Surgery, Japanese Red Cross Kochi Hospital, Kochi-city, Kochi, Japan4Department of Thoracic Surgery, Japanese Red Cross Kochi Hospital, Kochi-city, Kochi, Japan5Department of Internal Medicine, Yusuhara Hospital, Kochi-city, Kochi, JapanThe authors report no conflict of interest, financial or otherwise.＊Corresponding Author: Kenji Yorita, M.D., Ph.D.,Department of Diagnostic Pathology, Japanese Red Cross Kochi Hospital, 1-4-63-11, Hadaminamimachi, Kochi-city, Kochi 780-8562, JapanTel: +81-88-822-1201Fax: +81-88-822-1056E-mail: kenjiyorita@gmail.comKeywords : expanded polytetrafluoroethylene sheet, cardiac pacemaker, foreign body