Heterotopic gastric mucosa occurs in all areas of the gastrointestinal tract including the nasopharynx, tongue, esophagus, small intestine, colon, and rectum. Gastric heterotopia of the large bowel is infrequent, and most cases have been reported in the rectum. Review of the literature has revealed only eight cases involving the colon proximal to the rectum. Little is known of the natural histo...

We present a 71-year-old man with mucosa-associated lymphoid tissue (MALT) lymphoma of the colon presenting with massive gastrointestinal hemorrhage. At laparotomy two areas of irregular mucosa were noted in the ascending colon and cecum. Pathology revealed MALT lymphoma. MALT lymphoma of the colon is rare and the presentation as well as outcome of our case makes him unique.

Despite the increasing number of scientific reports describing adhesion of Lactobacillus to components of the human intestinal mucosa, information on the surface molecules mediating this adhesion and their corresponding receptors is fragmentary. This MiniReview compiles present knowledge of the genetically and functionally characterized Lactobacillus factors responsible for mediating adhesion t...

The control of iron absorption appears to reside in the mucosa of the gastrointestinal tract. The normal dog absorbs very little iron, but the anemic iron-depleted dog may absorb 10 to 20 times as much. This "mucosal block" of the normal dog probably is due largely to iron stores in the mucosa. "Mucosal block" can be effected in the anemic iron-depleted dog by feeding of iron salts, but the deg...

INTRODUCTION Testicular neoplasms metastasizing to the retroperitoneum rarely involve the upper gastrointestinal tract. Gastrointestinal tract metastases usually present with complications including intestinal obstruction, gastrointestinal hemorrhage, and rarely ulceration of the bowel mucosa. CASE PRESENTATION We describe an unusual case of duodenal perforation as the presenting manifestatio...

Small amounts of Aminopterin, one of the antifolic metabolites, produce gastrointestinal effects such as nausea, vomiting, melena, and diarrhea in human beings (1, 2) and destruction of the epithelial elements in experimental animals (3, 4). A single injection of 240 y of Aminopterin per kilo of body weight had no morphological effect when administered to young adult rats, but caused a marked r...

The gastrointestinal tract is the first physiological state of animals involved in the transformation of diet into nutrients and their absorption across intestinal mucosa, the phenomenon of digestion. This entire episode is regulated by the cumulative actions of two unique components of alimentary canal i.e., enteric nervous and endocrine components (Guyton and Hall, 2008). The enteric endocrin...

Small amounts of Aminopterin, one of the antifolic metabolites, produce gastrointestinal effects such as nausea, vomiting, melena, and diarrhea in human beings (1, 2) and destruction of the epithelial elements in experimental animals (3, 4). A single injection of 240 y of Aminopterin per kilo of body weight had no morphological effect when administered to young adult rats, but caused a marked r...