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Transient gas-filled appendix developing during excretory urography.
Diagnostic Imaging in Clinical Medicine
|January 1, 1985
Summary
Gas-filled appendix can occur during excretory urography, a diagnostic imaging procedure. This phenomenon may be linked to contrast agents causing increased bowel tone, leading to gas displacement into the appendix.
Area of Science:
- Radiology
- Gastroenterology
- Medical Imaging
Background:
- Gas-filled appendix is a known finding in appendicitis and acute abdominal conditions.
- Bowel distension is often associated with gas in the appendix.
Observation:
- Three patients undergoing excretory urography developed a gas-filled appendix.
- This observation occurred during the diagnostic imaging procedure.
Findings:
- The phenomenon is hypothesized to stem from ionic contrast materials used in urography.
- Contrast agents may induce anticholinesterase activity and histamine release.
- These effects could lead to increased bowel tone and cecal gas displacement into the appendix.
Implications:
- Understanding this association is crucial for accurate interpretation of excretory urography findings.
- It highlights a potential, albeit uncommon, side effect of ionic contrast media.
- Further research may clarify the precise mechanisms involved in contrast-induced appendiceal gas.