E2627. Intussusception in Adults: A Case-Based Review of Common and Uncommon Causes
  1. Kevin Mason; University of Cincinnati
  2. Charles Shelton; University of Cincinnati
  3. Juliana Tobler; University of Cincinnati
  4. Shaun Wahab; University of Cincinnati
Intussusception occurs when a loop of small bowel or colon telescopes or invaginates into the lumen of an adjacent segment. This event is almost always precipitated by a lead point; however, sometimes it is idiopathic. Patients usually present with acute, colicky, sharp abdominal pain, nausea, vomiting, and potentially bloody stools. Intussusceptions are not as frequently encountered in adults as in children; however, it is important for radiologists to understand many of the common and uncommon etiologies. This exhibit will provide a case-based review of causes of intussusception and associated imaging findings.

Educational Goals / Teaching Points
This exhibit will review common and uncommon etiologies of intussusception in adult patients and discuss the clinical manifestations. Treatments and complications of intussusceptions will also be summarized.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
This exhibit will highlight the key clinical and CT imaging findings demonstrated with intussusception. We will focus on identifying and differentiating idiopathic intussusceptions from those resulting secondary to a pathologic lead point. Staging and grading of intussusceptions will be explained as well as treatment options.

Intussusception of the small bowel and colon in adults is an infrequent but important cause of abdominal pain in radiology. Understanding the CT findings and complications can assist the team in a timely diagnosis and reduce patient morbidity and mortality.