Matthew Harlan Lee MD, Presenter: Nothing to Disclose

Meghan G. Lubner MD, Abstract Co-Author: Nothing to Disclose

Christine O. Menias MD, Abstract Co-Author: Nothing to Disclose

Sanjeev Bhalla MD, Abstract Co-Author: Nothing to Disclose

Douglas Robert Kitchin MD, Abstract Co-Author: Nothing to Disclose

Perry J. Pickhardt MD, Abstract Co-Author: Co-founder, VirtuoCTC, LLC Stockholder, Cellectar Biosciences, Inc

- Review causes of intussusception in adults. - Identify characteristic clinical and imaging features of enteroenteric, ileocolic, and colocolic intussusception. - Establish a differential diagnosis for pathologic lead points in adults based on patient history (i.e. cancer diagnosis), clinical presentation, and region of involvement.  

- Introduction and overview of adult intussusception. - Illustrate causes of intussusception (e.g. malignant, benign neoplastic, congenital, acquired) in adults and describe typical US, fluoroscopic, and CT findings. Examples: • Enteroenteric: Metastases (e.g. lung cancer, sarcoma), adenocarcinoma, GIST, PTLD, lipoma, Peutz-Jeghers polyp, gastric heterotopia, idiopathic. • Ileocolic: PTLD/Lymphoma, inflammatory polyp, Meckel diverticulum. • Colocolic: Primary colorectal cancer, metastases (melanoma), lipoma, villous adenoma. Summary: - Albeit a rare cause of obstruction, adult intussusception is usually associated with a pathologic lead point. - CT is the primary imaging modality to evaluate symptomatic intussusception. - Colocolic intussusception may be a harbinger of underlying malignancy - some series report malignant causes of intussusception greater in colonic than small bowel intussusception. - Patient history informs diagnosis in the setting of intussusception.  

http://abstract.rsna.org/uploads/2014/14006320/14006320_oirz.pdf

Lee, M, Lubner, M, Menias, C, Bhalla, S, Kitchin, D, Pickhardt, P, Take Me to Your Leader: What to Know About Adult Intussusception.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14006320.html