Duodenal stenosis from intramural cystic annular pancreas.

A case of annular pancreas presenting with duodenal obstruction due to overfilling of a large intramural duodenal cyst is reported. At 30 years of age, this man was an alcoholic with repeated attacks of pancreatitis which produced the enlargement of an annular pancreas and the development of a cyst probably through blocking of an aberrant duct. The surgical operation consisted of simply removing part of the external cyst wall and outer anterior layer of the duodenum. A postoperative acalculous cholecystitis necessitated subsequent cholecystectomy. Four years later, the patient had to be operated on for duodenal stenosis due to recurrent duodenal ulcers.

[The role of endoscopic polypectomy in the prevention of cancer of the colon]. / Il ruolo della polipectomia endoscopica nella prevenzione del cancro del colon.

After briefly analyzing the concept and genesis of dysplasia starting with the normal large bowel cell and then illustrating the polyp-carcinoma sequence, the authors report on their experience with 283 endoscopic polypectomies in a total of 1.875 patients undergoing endoscopy of the rectum, sigmoid and large bowel since 1980. Forty-nine polyps presented severe dysplasia, and 38 had already degenerated to carcinoma; nine of the carcinomas had invaded the stalk and the patients were subjected to resection of the colon and mesocolon, lymph-node metastases being observed in 1 case.

Retroperitoneoscopy for biopsy of pelvic and medium-low para-aortic lymph nodes and tissues.

A mediastinoscope is used for pelvic, low and medium retroperitoneoscopy. Twelve procedures have been performed in 11 selected patients. The method is proposed for diagnosis and staging of lymphomas, genitourinary tumors and other miscellaneous pathology of the retroperitoneum.