1. Endoscopic resection alone as a potential treatment method for low-risk deep invasive T1 colorectal cancer
- Author
-
Kouyama, Yuta, Kudo, Shin-ei, Ichimasa, Katsuro, Matsudaira, Shingo, Ogawa, Yushi, Mochizuki, Kenichi, Takashina, Yuki, Sato, Yuta, Sakurai, Tatsuya, Maeda, Yasuharu, Nakamura, Hiroki, Misawa, Masashi, Mori, Yuichi, Kudo, Toyoki, Hayashi, Takemasa, Wakamura, Kunihiko, Nemoto, Tetsuo, Baba, Toshiyuki, Ishida, Fumio, and Miyachi, Hideyuki
- Abstract
Although T1b (deep submucosal invasion) is described as an indication of surgical resection with lymph node dissection for T1 colorectal cancer (CRC) in current guidelines, it reportedly has a weaker correlation to the lymph node metastasis (LNM) than other risk factors (lymphovascular invasion, poorly differentiated or mucinous adenocarcinoma, and tumor budding). “Low-risk T1b” CRC, which is defined as a lesion with only T1b and no other risk factors, may not require additional surgical resection. The aim of this study was to evaluate the necessity of surgeries in patients with low-risk T1b CRC from the point of the risk of LNM, recurrence, and long-term outcome.
- Published
- 2023
- Full Text
- View/download PDF