Recurrence after curative surgical resection of T1 rectal cancer: a report of two cases
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Updated: May 12, 2026
Robot-assisted Total Mesorectal Excision and Lateral Pelvic Lymph Node Dissection for Locally Advanced Middle-low Rectal Cancer
Published on: February 12, 2022
Yuichiro Yamaguchi1, Kinichi Hotta, Kenichiro Imai
1Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan. y.yamaguchi@scchr.jp
Abstract:
Recent advances in endoscopic diagnosis and treatment techniques have led to a marked increase in the detection and endoscopic treatment of early colorectal cancers (CRC). According to the Japanese Society for Cancer of the Colon and Rectum (JSCCR) guidelines, T1-CRC with a negative vertical margin, well- or moderately differentiated adenocarcinoma, no evidence of vascular or lymphatic invasion, and depth of invasion <1000 μm are considered to have a low risk of lymph node metastasis. However, T1-CRC with any of these risk factors are considered to have a high risk of lymph node metastasis. T1-CRC is considered to have a good prognosis if additional surgery is carried out. We experienced two cases of recurrence despite curative surgical resection of T1 rectal cancer.
