[Is mucinous colorectal adenocarcinoma a distinct entity?].

Introduction: Several publications have demonstrated that mucinous carcinomas of the colon and rectum are associated with certain clinicopathological and genetic peculiarities that distinguish them from non-mucinous carcinomas. The principal aim of this study was to evaluate whether the biological behavior of mucinous carcinomas differs from that of intestinal carcinomas in patients undergoing surgery for colorectal cancer.

Patients: Between January 1993 and December 2000, 215 patients.

'Hybrid' Bariatric Surgery: Bilio-pancreatic Diversion and Duodenal Switch- Preliminary Experience.

BACKGROUND: Hybrid, combined or mixed bariatric surgery is the combination of a degree of 'malabsorption' (as achieved by the intestinal bypass) with a 'restriction' (as achieved by gastric bypass or gastroplasty), thereby simultaneously reducing the absorption of fats in the small bowel and decreasing the intake of food. METHODS: A modification of the bilio-pancreatic diversion (BPD) with a duodenal switch procedure, vertical lineal gastrectomy and preservation of the pylorus, has been used in 23 patients. The antropyloric pump and 4 cm of the duodenum are left intact to preserve physiologic gastric emptying and to prevent anastomotic ulcer.

[A new method of studying gastric emptying in gastrectomized patients].

Objective: We present a new method of assessment of gastric emptying in gastrectomized patients.

Patients And Methods: The gastric emptying of non digestible solids were studied in two groups of gastrectomized patients, the Billroth II (n = 25) and the Roux-en-Y (n = 36) to relate the gastric emptying with the postgastrectomy symptoms.

Results: The food retained in the gastric stump is related with significance with the presence (p = 0.

[Value of endoscopy in the diagnosis of postoperative gastritis caused by alkaline reflux].

Objective: A long term retrospective study comparing endoscopic lesions and their relationship with symptoms and histological lesions of postoperative Alkaline Reflux Gastritis (ARG) between partial gastrectomy Billroth II (n = 25) and the Roux-en-Y (n = 36) is presented.

Patients And Methods: In patients operated on with both techniques the clinical, endoscopic and histological aspects are studied.

Results: The patients operated on with the Billroth II technique present a higher frequency of bile in the gastric remnant and mucosal lesions in the endoscopic study (p < 0.