[Combination of endoscopic mucosal resection and full-thickness resection in the treatment of local residual neoplasia of the colon two case reports]

We present the case of a 61-year-old patient with local residual neoplasia (LRN) of the rectum and the case of a 65-year-old patient with LRN of the cecum. In both cases, the lesion measured 25 mm in diameter and its center was fixed by submucosal fibrosis causing the non-lifting sign. For endoscopic treatment, which was uneventful,a combination of endoscopic mucosal resection (EMR) and full-thickness resection (FTR) was used. In both cases, histological examination showed completely resected tubular adenoma with HGIN.Key words: colorectal carcinoma local residual neoplasia full-thickness resection endoscopic mucosal resection.