gastric remnant
The excluded portion of stomach that remains after gastric bypass surgery, typically the antrum and body sections.
Full Definition
The gastric remnant refers to the excluded portion of the stomach that remains in the abdomen following gastric bypass surgery. This remnant typically consists of the antrum, body, and sometimes part of the fundus of the original stomach, which is surgically separated from the newly created gastric pouch but left in place. The gastric remnant continues to produce gastric secretions but no longer receives food. Monitoring of the gastric remnant is important as it can develop complications such as ulceration, perforation, or malignancy. Access to the gastric remnant for endoscopic evaluation requires specialized techniques or surgical intervention.
Usage
Usage note: Always distinguish from the functional gastric pouch in bypass patients.
In Context
- "CT imaging revealed fluid collection adjacent to the gastric remnant, concerning for perforation." — radiology report
- "Endoscopic evaluation of the gastric remnant requires balloon-assisted enteroscopy due to altered anatomy." — procedure note