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Intestinal malrotation in children: tutorial on radiographic diagnosis in difficult cases
F R Long1, S S Kramer, R I Markowitz
1Department of Radiology, Children's Hospital of Philadelphia, Pennsylvania 19104, USA.
Radiology
|March 1, 1996
Summary
Diagnosing malrotation in children requires recognizing subtle anatomic signs. Avoiding false positives involves understanding normal duodenal variations, crucial for accurate surgical planning.
Area of Science:
- Pediatric Surgery
- Diagnostic Imaging
- Gastrointestinal Radiology
Background:
- Intestinal malrotation is a congenital anomaly requiring prompt diagnosis.
- Accurate diagnosis is essential to prevent complications such as volvulus andкъ ischemia.
- Challenging cases often stem from subtle radiographic findings or normal anatomical variants.
Purpose of the Study:
- To identify key features for diagnosing difficult pediatric malrotation cases.
- To analyze factors contributing to false-positive and false-negative upper gastrointestinal (UGI) examinations in malrotation.
Main Methods:
- Retrospective review of radiographs and records for 81 symptomatic children with preoperative malrotation diagnosis.
- Analysis of cases with subtle malrotation (potential false negatives) and incorrect diagnoses (false positives).
Main Results:
- Subtle malrotation signs include duodenal redundancy right of the spine and left of the duodenojejunal junction (DJJ) pedicle.
- False positives arise from misinterpreting normal variants like right upper quadrant jejunum or DJJ over the left pedicle.
- Bowel distention can displace the DJJ, complicating diagnosis.
Conclusions:
- Accurate diagnosis of pediatric malrotation hinges on recognizing subtle anatomical cues.
- Understanding normal duodenal variants is critical to prevent misdiagnosis and avoid unnecessary interventions.