This page is dedicated to covering the important radiological finding of Rigler sign. Look here for more radiological findings.
WHAT IS IT?
Rigler sign refers to a finding on radiological imaging where one is able to see both sides of the bowel wall.
DIFFERENTIAL DIAGNOSIS FOR THIS FINDING
When seeing a Rigler sign, it is important to keep in mind the following possible causes of this finding:
- Recent abdominal surgery:
- Bowel perforation: perforated peptic ulcer, diverticulitis, appendicitis, carcinoma, trauma
- Perforated stomach: perforated peptic ulcer
KEY FEATURES TO LOOK FOR WHEN CHARACTERIZING THE FINDING
When seeing a Rigler sign, there are a few important features one should keep in mind to try and characterize the finding. These features can help navigate the differential diagnosis above.
- Recent abdominal surgery/procedure history in patient: if the patient has recently had a surgical operation/procedure that could introduce air int he peritoneal space, this radiological exam finding may very well be expected. The free air should subside ~ 1 week after a procedure.
Page Updated: 01.10.2017