[(18)F]-2-fluoro-2-deoxy-D-glucose ([(18)F]-FDG) is a useful radiotracer to detect malignant tumors. However, inflammatory processes are likely to be mistaken as malignant tumors owing to strong accumulation of [(18)F]-FDG. The fluorinated nucleoside base 5-fluorouracil has remained an important antimetabolite agent in the treatment of a variety of cancers. The objective of this study was to evaluate the possibility of discriminating between malignant tumors and inflammation by [(18)F]-5-fluorouracil ([(18)F]-5-FU).
Department of Gastroenterological Surgery, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan. sugae@urahp.yokohama-cu.ac.jp