А.A. Mitrakov1,2, V.A. Kryazhov1,2, R.S. Smirnova1, O.V. Zhelezin1, R.G. Pegov1, V.M. Теrekhov1

1Nizhny Novgorod Regional Clinical Oncology Center, Nizhny Novgorod

2Volga Region Research Medical University, Nizhny Novgorod

Mitrakov A.A. ― head of Endoscopy Department of the Nizhny Novgorod Regional Clinical Oncology Center, assistant of the Department of Oncology, radiation therapy and radiology of the Volga Region Research Medical University

1 Ankundinovskoe highway, Nizhny Novgorod, 603081, tel. +7-930-700-33-84, e-mail: alexandr_mit@mail.ru

Abstract. 607 patients with 544 colonic neoplasias were treated endoscopically. There were 142 cases of polypectomy, 171 cases of endoscopic mucosal resection, 211 cases of endoscopic piecemeal mucosal resection, 80 cases of endoscopic submucosal dissection. The operation method’s choice was based on such criteria like type of the lesion, it’s size, localization, capillary network, preoperative morphological examination. Morphological evaluation was performed after operation, in case of revealing malignant cells assessment of R0 resection was performed. Results showed that endoscopic treatment is high-effective method with low risk of complications and recurrence. It is extremely important to follow guidelines for preoperative diagnostics, indications for method of treatment and morphological assessment of the specimen.

Key words: endoscopic intraluminal treatment, colonic neoplasia, endoscopic mucosal resection, endoscopic submucosal dissection.