Choristoma is development of a normal tissue in an aberrant location. This report describes jejunal salivary choristoma (JSC) causing recurring episodes of abdominal discomfort in a 5-year-old girl. Exploratory laporatomy revealed a pale yellow subserosal jejunal lesion. Wedge resection of the lesion and repair of the bowel were performed. The child did well postoperatively and has since that t...

Introduction: The ectopic pancreas of the small bowel is unusual submucosal hamartoma. It may present acutely or as an incidental finding during exploratory laparotomy or diagnostic laparoscopy. Materials and Methods: This patient presented as acute appendicitis. Gridiron incision was used for exploration and the appendix was normal. Free peritoneal fluid and subserosal mass of about 1.2x1 cm w...

A 55-year-old Japanese man with a history of diverticulitis underwent colonoscopy for careful evaluation of progressive anemia. A 5-mm depressed lesion oozing spontaneously was observed at the hepatic flexure. On suspicion of depressed-type of cancer, right-sided hemicolectomy was performed. Histopathological examination indicated a collapsed lymphangioma exactly over a diverticulum, which had ...

Pneumatosis cystoides intestinalis is a rare disorder with multiple submucosal or subserosal gas-filled cysts along the gastrointestinal wall. Pneumatosis intestinalis can be classified as either primary (idiopathic) or secondary. In the latter form, a causal relationship has been established with chronic obstructive pulmonary disease, amyloidosis, infectious colitis, intestinal obstruction, is...

The subperitoneal space is a large, unifying, anatomically continuous potential space that connects the peritoneal cavity with the retroperitoneum. This space is formed by the subserosal areolar tissue that lines the inner surfaces of the peritoneum and the musculature of the abdomen and pelvis. It contains the branches of the vascular, lymphatic, and nervous systems that supply the viscera. Th...

We first carried out microscopic observation of the intramural nerves of hamster and mouse gallbladders which were fixed and stained with a solution of OsO4 and ZnI2. For this microscopic observation, the guinea-pig gallbladder was used as a control. We then investigated the relationship between the motility and intramural nerves of the isolated gallbladder in both the hamster and mouse. The fo...