Multiple Tumours of the Large Intestine

Incidence and significance of argentaffin and paneth cells in some tumours of the large intestine.

The incidence of argentaffin and Paneth cells in epithelial tumours of the large intestine was investigated. Argentaffin cells were found in adenomatous polyps, villus adenomas, polyposis coli, Peutz-Jehgers' polyps, juvenile polyposis, and adenocarcinomas. Paneth cells were not found in metaplastic or juvenile polyps. The crypt unit was destroyed in neoplasia and argentaffin and Paneth cells o...

Disorders of the Large Intestine

Irritable bowel syndrome (IBS) is a chronic non–life-threatening disorder characterized by abdominal pain and alteration in bowel habits. IBS is an extremely common disorder; estimates put the prevalence in the North American population at 10 to 15%, with women affected twice as often as men. Although only one third of patients who have the clinical syndrome ever seek medical attention, IBS acc...

WHO histological classification of tumours of the small intestine

Large Intestine

The equine large intestine consists of the following segments (in aboral direction): the cecum, the large colon, and the small colon (Fig. 36-1). Although these segments form a continuum for the passage of digesta from the ileum to the anus, the three portions are considered to be separate structures, anatomically, functionally, and surgically. The large intestine of the horse is well developed...

The Functional Divisions of the Large Intestine

T HE portion of the alimentary canal in which the final processes of normal digestion occur, and in which almost all the digested food is absorbed, is the small intestine. At the lower end of this long tube is the large intestine, serving, it is usually taught, as a reservoir to receive, store, and periodically discharge the accumulation of waste. Throughout the small intestine the contents are...