E1733. See the Sweep: Common and Uncommon Findings in the Duodenum
  1. Bryan Bunnell; Strong Memorial Hospital - University of Rochester Medical Center
  2. Sankarsh Jetty; Strong Memorial Hospital - University of Rochester Medical Center
  3. Ravinder Sidhu; Strong Memorial Hospital - University of Rochester Medical Center
  4. Akshya Gupta; Strong Memorial Hospital - University of Rochester Medical Center
The duodenum is one of the most frequently imaged organs in the body, as a result of direct imaging of the abdomen and pelvis and frequent inclusion on routine CT scans of the chest. The radiologist plays a pivotal role in identifying duodenal pathologies, as their clinical presentation is often vague or non-specific. The purpose of this presentation is to provide a multi-modality overview of common and uncommon duodenal pathology and its diverse radiologic manifestations to increase the radiologist's awareness of this easily overlooked region.

Educational Goals / Teaching Points
1. Review the embryologic development of the duodenum. 2. Review the anatomy of the duodenum. 3. Highlight imaging modalities and protocols which can be used to evaluate the duodenum. 4. Review common and uncommon duodenal pathologies and their complications. 5. Review the post-operative duodenum. 6. Review common mimics and pitfalls.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
1. Embryology of duodenum. 2. Anatomy of duodenum. 3. Congenital anomalies, such as malrotation and annular pancreas. 4. Duodenal emergencies, vascular and trauma. 5. Duodenitis, infectious and inflammatory. 6. Duodenal masses, benign and malignant. 7. Post-operative anatomy and complications 8. Acquired duodenal pathology, including small bowel obstruction and gallstone ileus 9. Mimics and pitfalls.

While definitive diagnosis of duodenal pathology is often made through endoscopic evaluation, imaging plays an important role in guiding management, which is highly varied and often requires collaboration with multiple specialists. As a critical member of the diagnostic team, the radiologist must be intimately familiar with these pathologies to allow provision of timely, high-quality patient care.