Shiro Oka, Shinji Tanaka, Yoshiki Kajiwara, Shoichi Saito, Yosuke Fukunaga, Manabu Takamatsu, Hiroshi Kawachi, Kinich Hotta, Hiroaki Ikematsu, Motohiro Kojima, Yutaka Saito, Masayoshi Yamada, Yukihide Kanemitsu, Shigeki Sekine, Shinji Nagata, Kazutaka Yamada, Nozomu Kobayashi, Soichiro Ishihara, Yusuke Saitoh, Kenji Matsuda, Kazutomo Togashi, Koji Komori, Megumi Ishiguro, Toshio Kuwai, Takashi Okuyama, Akihiro Ohuchi, Shinobu Ohnuma, Kazuhiro Sakamoto, Tamotsu Sugai, Kenji Katsumata, Hiro-O Matsushita, Hiro-O Yamano, Hirotsugu Eda, Toshio Uraoka, Naohiko Akimoto, Hirotoshi Kobayashi, Kenichi Sugihara, Hideki Ueno
OBJECTIVES: To verify the value of the pathological criteria for additional treatment in locally resected pT1 colorectal carcinoma (CRC) which have been used in the Japanese Society for Cancer of the Colon and Rectum (JSCCR) guidelines since 2009. METHODS: We enrolled 4719 patients with pT1 CRC treated at 27 institutions between July 2009 and December 2016 (1259 patients with local resection alone [Group A], 1508 patients with additional surgery after local resection [Group B], and 1952 patients with surgery alone [Group C])...
February 12, 2024: American Journal of Gastroenterology