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CT of internal hernias
Nobuyuki Takeyama1, Takehiko Gokan, Yoshimitsu Ohgiya
1Department of Radiology, Showa University School of Medicine, 1-5-8 Hatanodai, Tokyo 142-8666, Japan. momiji@mtc.biglobe.ne.jp
Summary
Computed tomography (CT) aids in diagnosing internal hernias, a rare cause of intestinal obstruction. Early CT detection of specific signs can guide timely surgical intervention, improving patient outcomes.
Area of Science:
- Radiology
- Abdominal Surgery
- Gastroenterology
Background:
- Computed tomography (CT) is crucial for diagnosing acute intestinal obstruction.
- Internal hernias are uncommon causes of intestinal obstruction, particularly without prior abdominal surgery or trauma.
- Internal hernias can lead to strangulating small bowel obstruction (SBO), necessitating prompt diagnosis.
Purpose of the Study:
- To correlate surgical and radiologic findings of internal hernias.
- To identify CT features helpful in the preoperative diagnosis of internal hernias.
- To emphasize the importance of early surgical intervention for internal hernias.
Main Methods:
- Retrospective analysis of 13 cases with internal hernias.
- Correlation of surgical findings with CT imaging.
- Review of CT findings associated with small bowel obstruction (SBO) and internal hernias.
Main Results:
- Nine different types of internal hernias were identified.
- Key CT findings include SBO, abnormal location of dilated bowel loops, and characteristic mesenteric vascular changes.
- Strangulating SBO is a common manifestation of internal hernias.
Conclusions:
- CT is valuable for diagnosing internal hernias, especially when considering differential diagnoses for SBO.
- Preoperative identification of internal hernias relies on understanding anatomy and recognizing specific CT signs.
- Early surgical intervention is critical to reduce morbidity and mortality associated with internal hernias.