Safety and long-term results of endoscopic transanal resection in treating rectal adenomas: 15 years' experience

'Natural orifice' transcolostomy full-thickness excision of colonic tumour

This technical note describes a novel technique, not previously found in the surgical or endoscopic literature: A combined endoscopic and surgical approach to perform a full-thickness excision of a colonic tumour. At the time of colonoscopy via stoma, a large sessile polyp in the descending colon was detected but could not be safely resected endoscopically. The lesion was exteriorised by prolapsing the distal colon through the colostomy, then excised surgically with adequate margins in a full-thickness fashion. This approach was more complete than an endoscopic approach and less invasive than a segmental colectomy and redo colostomy. It may prove useful to surgical endoscopists facing a similar clinical situation in their practice.

Poorly Differentiated Neuroendocrine Tumor of the Rectum Coexistent with Giant Rectal Villous Adenoma Presenting as McKittrick-Wheelock Syndrome

McKittrick-Wheelock Syndrome is a rare disorder, noted for electrolyte and fluid depletion caused by secretory colorectal adenomas and carcinomas. We report here the first reported case of a 55-year-old man with a large rectal villous adenoma coexistent with a poorly differentiated neuroendocrine tumor of rectum presenting with McKittrick-Wheelock Syndrome. Palliative chemotherapy resulted in complete resolution of symptoms and improved quality of life.

A new technique of totally laparoscopic resection with natural orifice specimen extraction (NOSE) for large rectal adenoma

There is no consensus about the best technique to use for the surgical treatment for large rectal adenomas. The advent of laparoscopic surgery has led to the development of several new methods for the treatment of gastrointestinal tumors. This study was designed to introduce an innovative technique of totally laparoscopic resection with natural orifice specimen extraction (NOSE) for large rectal adenomas and to assess the feasibility and safety of the technique. Between February 2011 and January 2014, we performed totally laparoscopic resection with NOSE on 18 patients with a large rectal adenoma. This new technique was successful in all 18 patients. The average size of the adenoma was 4.2 cm. Mean operation time was 108.4 min, and mean intraoperative blood loss was 36.6 ml. The mean time to passing of the first flatus was 2.3 days, and the mean postoperative hospital stay was 7.2 days. Only one patient needed analgesics after the operation. All patients were able to walk within the first 2 days. There were no cases of morbidity and recurrence. Totally laparoscopic resection with NOSE appears to be suitable for selected patients with a large adenoma located in mid- or low rectum.