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Pediatrics
Diagnosis
Gastrointestinal
Other Abnormalities Associated With Bowel Obstruction
Internal Hernia
Internal Hernia
Ethan A. Smith, MD
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KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Clinical Issues
TERMINOLOGY
Definitions
Herniation of bowel through mesenteric defect, congenital band, or normal anatomic opening
Transmesenteric hernia: Congenital mesenteric defect, usually near ileocecal valve or ligament of Treitz
Most common type in children
Acquired: Postsurgical (iatrogenic) or posttraumatic
Other types of internal hernias more common in adults
Foramen of Winslow, paraduodenal, pericecal, transomental
IMAGING
General Features
Radiographic Findings
CT Findings
MR Findings
Ultrasonographic Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Image Interpretation Pearls
Reporting Tips
Selected References
Page MP et al: Newborn and toddler intestinal obstruction owing to congenital mesenteric defects. J Pediatr Surg. 43(4):755-8, 2008
Martin LC et al: Review of internal hernias: radiographic and clinical findings. AJR Am J Roentgenol. 186(3):703-17, 2006
Takeyama N et al: CT of internal hernias. Radiographics. 25(4):997-1015, 2005
Blachar A et al: Internal hernia: clinical and imaging findings in 17 patients with emphasis on CT criteria. Radiology. 218(1): 68-74, 2001
Related Anatomy
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Related Differential Diagnoses
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Clinical Issues
TERMINOLOGY
Definitions
Herniation of bowel through mesenteric defect, congenital band, or normal anatomic opening
Transmesenteric hernia: Congenital mesenteric defect, usually near ileocecal valve or ligament of Treitz
Most common type in children
Acquired: Postsurgical (iatrogenic) or posttraumatic
Other types of internal hernias more common in adults
Foramen of Winslow, paraduodenal, pericecal, transomental
IMAGING
General Features
Radiographic Findings
CT Findings
MR Findings
Ultrasonographic Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Image Interpretation Pearls
Reporting Tips
Selected References
Page MP et al: Newborn and toddler intestinal obstruction owing to congenital mesenteric defects. J Pediatr Surg. 43(4):755-8, 2008
Martin LC et al: Review of internal hernias: radiographic and clinical findings. AJR Am J Roentgenol. 186(3):703-17, 2006
Takeyama N et al: CT of internal hernias. Radiographics. 25(4):997-1015, 2005
Blachar A et al: Internal hernia: clinical and imaging findings in 17 patients with emphasis on CT criteria. Radiology. 218(1): 68-74, 2001
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