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[Ileocecal invagination--an unequivocal computer tomography diagnosis]
Digitale Bilddiagnostik
|December 1, 1985
Summary
Computed tomography (CT) can diagnose ileocecal intussusception caused by lipoma. Intraluminal lipomas are identifiable by density measurement, with the invaginated ileum creating a mass caudal to the lipoma.
Area of Science:
- Gastrointestinal radiology
- Abdominal imaging
- Surgical pathology
Background:
- Ileocecal intussusception is a common surgical emergency.
- Lipomas are benign submucosal tumors that can lead to intussusception.
- Accurate preoperative diagnosis is crucial for appropriate management.
Observation:
- Computed tomography (CT) allows for the diagnosis of ileocecal intussusception secondary to lipoma.
- Intraluminal lipomas are identified by characteristic density measurements on CT.
- The invaginated ileum (intussusceptum) appears as an intraluminal mass distal to the lipoma.
Findings:
- CT findings include an intraluminal mass at the ileocecal junction with characteristic low attenuation values suggestive of fat.
- The intussusceptum is visualized as a concentric structure within the intussuscipiens.
- A crescent of mesenteric fat may be seen between the intussuscipiens and intussusceptum, indicating incomplete separation.
Implications:
- CT imaging alone can establish the diagnosis, potentially avoiding more invasive procedures.
- Identifying lipoma as the cause allows for targeted surgical or endoscopic intervention.
- This diagnostic capability aids in surgical planning and improves patient outcomes.