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Table 2 Causes of radical resection after colonoscopic polypectomy

From: Tumor budding as a risk factor of lymph node metastasis in submucosal invasive T1 colorectal carcinoma: a retrospective study

Causes N (=22)
Involved or closed resection margin 10 (45.5 %)
Patient wanted (Sm1 or Sm2) 4 (18.2 %)
No identification of tumor depth, lymphovascular invasion, or resection margin 3 (13.7 %)
Lymphatic invasion (+) 2 (9.1 %)
No lifting of tumor at trial for polypectomy 1 (4.5 %)
Piecemeal resection 1 (4.5 %)
Sessile polyp c rectal invasive carcinoma 1 (4.5 %)