Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan.
Dig Endosc. 2013 May;25 Suppl 2:26-30. doi: 10.1111/den.12116.
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.
近年来，内镜诊断和治疗技术的进步使得早期结直肠癌（CRC）的检测和内镜治疗显著增加。根据日本结直肠癌学会（JSCCR）指南，如果垂直切缘阴性、分化良好或中等的腺癌、无血管或淋巴管侵犯证据以及浸润深度<1000μm，T1-CRC 被认为具有较低的淋巴结转移风险。然而，如果存在任何这些危险因素，T1-CRC 被认为具有较高的淋巴结转移风险。如果进行额外的手术，T1-CRC 被认为具有良好的预后。我们经历了两例 T1 直肠癌症尽管进行了根治性手术切除仍复发的病例。
