Villous adenoma of the bladder.

Villous adenomas of the bladder are rare tumors and up to now they have not been seen to undergo malignant transformation. We report a case of villous adenoma of the bladder with areas of adenocarcinoma in a 72-year-old man. We describe all the morphological, histochemical and immunohistochemical features characterizing this tumor. We recommend adequate pathological sampling and a thorough follow-up of patients with villous adenoma. The prognosis and the behaviour of these adenomatous papillary lesions, morphologically similar to colonic adenomas, in the bladder is unclear. We report a case with focal area of adenocarcinoma and review the literature.

[Anal sphincter function following colorectal anastomosis with a stapler by transperineal-sphincter approach]. / La funzionalita' sfinterica anale dopo anastomosi colo-rettale con stapler per via trans-perineo sfinterica.

In 4 patients who under went low anterior resection for cancer of mid and lower 1/3 of the rectum, with colo-rectal anastomosis by posterior transphinteric approach, anorectal pressure profiles have been studied by open tip technique 30 d. 6 months following operation. Bowel movements, gas and feces discrimination and anal continence were also controlled. Resting pressure, delta % pressure changes during recto-anal reflex, pressure in voluntary contraction, altered in the first post-operative period, become normal in 6 months. Although volume and pressure at urgent rectal sensation, volume and rectal sensation and compliance altered after surgery did not change after 6 months, suggesting that the reservoir function of the rectum is lost, patients achieved a good control of bowel movements, and a good gas and feces discrimination and anal continence within the first 6 months of operation.