Sentinel loop
Sentinel loop
The Sentinel loop (pronunciation: /ˈsɛntɪnəl luːp/) is a medical term used in radiology. It refers to a localized ileus (pronounced: /aɪˈliːəs/) from nearby inflammation, often seen on an abdominal radiograph.
Etymology
The term "sentinel" is derived from the Latin word "sentinela", meaning a guard or watchman. In this context, it refers to the loop's role in indicating or guarding against a potential problem. The term "loop" is used to describe the shape of the dilated segment of the bowel.
Definition
A Sentinel loop is a sign of localized ileus, or a lack of movement somewhere in the intestines that can lead to a buildup of gas and fluids. When viewed on an abdominal radiograph, it appears as a loop or coil of bowel, usually in the upper abdomen, that is dilated and filled with gas. This is often a response to nearby inflammation or irritation, such as pancreatitis, cholecystitis, or appendicitis.
Related Terms
- Ileus: A disruption in the normal propulsive ability of the gastrointestinal tract.
- Abdominal radiograph: A specific form of radiography or X-ray imaging used to assess the abdominal area.
- Pancreatitis: Inflammation of the pancreas.
- Cholecystitis: Inflammation of the gallbladder.
- Appendicitis: Inflammation of the appendix.
See Also
External links
- Medical encyclopedia article on Sentinel loop
- Wikipedia's article - Sentinel loop
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