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Magnetic resonance enterography: the test of choice in diagnosing intestinal "zebras"
Anjali S Kumar1, Jasna Coralic2, Reid Vegeler3
1Section of Colon and Rectal Surgery, Department of Surgery, MedStar Washington Hospital Center, Washington, DC 20010, USA ; Department of Surgery, MedStar Washington Hospital Center, Washington, DC 20010, USA.
Abstract:
Small bowel tumors and other rare intestinal disorders are often exceedingly difficult to identify. Even cutting-edge technologies, such as push enteroscopy and capsule endoscopy, can fail to determine the cause of a patient's symptoms. At our institution magnetic resonance enterography (MRE) has become an increasingly reliable tool in the difficult-to-diagnose or difficult-to-monitor patient. In this retrospective case series, we discuss four patients with four rare intestinal disorders that were successfully diagnosed using MRE after failing to be diagnosed using more routine technologies, such as CT scans and flexible sigmoidoscopies. With the discussion of these four cases we demonstrate that MRE is a useful diagnostic modality in patients whose surveillance is difficult or to diagnose rare colorectal disease phenomena, colloquially referred to as "zebras."
Insights
Magnetic resonance enterography (MRE) aids in diagnosing rare intestinal disorders when other methods fail. This imaging technique is valuable for identifying difficult-to-diagnose "zebra" conditions in the small bowel.
Area of Science:
- Gastroenterology
- Medical Imaging
- Diagnostic Technologies
Background:
- Diagnosing small bowel tumors and rare intestinal disorders presents significant challenges.
- Standard diagnostic tools like CT scans, flexible sigmoidoscopies, push enteroscopy, and capsule endoscopy can be insufficient for identifying rare conditions.
- There is a need for advanced imaging techniques to accurately diagnose and monitor patients with complex or rare gastrointestinal diseases.
Purpose of the Study:
- To evaluate the utility of magnetic resonance enterography (MRE) in diagnosing rare intestinal disorders.
- To demonstrate the effectiveness of MRE in cases where conventional diagnostic methods have failed.
- To highlight MRE as a reliable tool for identifying challenging gastrointestinal conditions, often referred to as 'zebras'.
Main Methods:
- Retrospective case series.
- Analysis of four patients with rare intestinal disorders.
- Comparison of diagnostic outcomes between MRE and routine technologies (CT scans, flexible sigmoidoscopies, etc.).
Main Results:
- Magnetic resonance enterography (MRE) successfully diagnosed four rare intestinal disorders in the studied patients.
- These diagnoses were achieved after initial evaluations using routine technologies proved inconclusive.
- MRE provided a definitive diagnosis for conditions that were previously difficult to identify or monitor.
Conclusions:
- Magnetic resonance enterography (MRE) is a highly effective diagnostic modality for rare intestinal disorders.
- MRE offers a valuable solution for diagnosing 'zebra' conditions in the small bowel that are missed by standard endoscopic and imaging techniques.
- The study supports the increased use of MRE for surveillance and diagnosis in patients with complex or rare gastrointestinal diseases.
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