Department of General Surgery, Healthcare Center of the Poviat Hospital in Sochaczew
Colorectal adenomas are early lesions, which may acquire invasive capabilities and transform into adenocarcinoma. Tubular, villous and mixed (tubulovillous) adenomas have been distinguished (1, 2). Adenocarcinoma is currently the third most common cancer diagnosed in humans, with very high mortality, placing it in second place as a cause for cancer-related deaths globally (3, 4). Therefore, colonoscopy with simultaneous removal of all suspicious lesions is very important. Some features may cause difficulties in complete and safe polyp excision during endoscopy. The size of tumour, deppresion in the centre, lack of lifting after saline injection under the lesion suggests its malignant nature (2). The current development of technology has allowed for the use of minimally invasive techniques also when accessing through natural body openings (5). The technology was developed by Gerhard Buess in Tubingen (Germany) in 1983 (6, 7). Since then, this method has become an excellent tool for removing lesions located 20 cm from the anal verge. Many works emphasising the superiority of TEM over conventional surgical techniques in terms of low anterior resection, and abdominoperineal resection of the rectum, have been published (3, 8).
The aim of this paper was to assess treatment efficacy using TEM in a patient with rectal tumour with low-grade dysplasia, located below the peritoneal pouch.
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