Items tagged “bowel”

The small intestine is rarely the site of malignant tumors, although it accounts for ~75% of the entire length of the GI tract and more than 90% of the mucosal surface. Approximately 40 different histologic tumor types have been described.  In this article, an overview will be given of the most...

The ascending colon is the second part of the large bowel. Gross anatomy The ascending colon is the continuation of the cecum superior to the ileocecal valve. It is secondarily retroperitoneal, although it has its own mesentery in approximately 25% of patients and is 15 cm in length 1,2. The ...

The following points may be helpful to distinguish between sigmoid volvulus and cecal volvulus on plain film. Sigmoid volvulus arises in the pelvis (left lower quadrant) extends towards the right upper quadrant ahaustral in appearance sigmoid volvulus causes obstruction of the distal large ...

Bowel wall calcification is not common and can occur secondary to various mechanisms due to benign, premalignant, or malignant lesions. The differential diagnoses include:  mucinous adenocarcinoma gastrointestinal stromal tumor (GIST) metastatic calcification - due to renal failure hemangio...

Bowel wall fat deposition refers to the infiltration of the submucosa with fat and usually occurs in chronic processes such as inflammatory bowel disease, causing characteristic fat halo sign on CT images.  Other differential diagnoses include: normal variant - particularly in obese patients w...