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Stump appendicitis: surgical background, CT appearance, and imaging mimics
Jennifer Johnston1, Daniel T Myers, Todd R Williams
1Henry Ford Hospital, 2799 W. Grand Boulevard, Detroit, MI, 48202, USA, jenniferjo@rad.hfh.edu.
Emergency Radiology
|July 3, 2014
Summary
Stump appendicitis, an inflammation of the remaining appendix after surgery, is uncommon. Radiologic findings like fat stranding can aid in diagnosing this remnant appendicitis.
Area of Science:
- Radiology
- Gastroenterology
- Surgical Pathology
Background:
- Stump appendicitis, or remnant appendicitis, is a rare complication following an incomplete appendectomy.
- Inflammatory changes in the appendiceal remnant present diagnostic challenges in radiology.
Purpose of the Study:
- To review the radiologic and pathologic findings of stump appendicitis.
- To identify key imaging features and potential mimics of stump appendicitis.
Main Methods:
- Retrospective review of six surgically/pathologically confirmed cases of stump appendicitis.
- Evaluation of CT imaging findings, including stump length, diameter, periappendiceal fat stranding, and complications.
Main Results:
- Average stump length was 3.5 cm (range 2.0-5 cm); average diameter was 12.3 mm (range 10-16 mm).
- All cases showed periappendiceal inflammatory fat stranding on CT.
- Imaging mimics such as Crohn's disease and epiploic appendagitis were also considered.
Conclusions:
- Familiarity with stump appendicitis imaging characteristics is crucial for accurate diagnosis.
- Recognizing imaging mimics can prevent misdiagnosis and unnecessary interventions.
- Earlier diagnosis of stump appendicitis can lead to improved patient outcomes.
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