Disorders of the small intestine

Disorders of the Small Intestine

Histomorphometric changes of small intestine in pregnant rat

Food intake of rats increases during pregnancy. This requires changes in the structure of the small intestine to absorb additional food. The aim of the present study was to investigate the morphological changes in the layers of small intestine in rats during pregnancy. Duodenum, jejunum and ileum of 18 pregnant Sprague-Dawley rats (day 7, 14 and 21 of pregnancy) were collected. Villous height a...

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...

PRIMARY MALIGNANT TUMORS OF THE SMALL INTESTINE: ANALYSIS OF 156 IRANIAN PATIENTS

156 Iranian patients with primary malignant tumors of the small intestine were reviewed. Malignant lymphoma was the most common tumor type, comprising 128 patients (82%), followed by adenocarcinoma (22 patients, 14.1 %), leiomyosarcoma (4 patients, 2.56%) and carcinoid tumor (2 patients, 1.28%). Lymphomas and adenocarcinomas were primarily located in the duodenum or jejunum, whereas leiomy...

Pseudolymphomas of the small intestine.

Difficulty ill the histopathological sepitratiou of atypical reactive hyperplasia "f the lyniplioreticular system from neoplasia is not new. Such difficulty has led to the nosological existence of peculiar tumors whieh have defied precise tla.ssifioation. Tlioso oc-cuning in the ^gastrointestinal tract have been designated "psoudoleukemia gastrointestinalis"\ "unclassified lymplioma"^ and "pseu...