This issue of Radiologic Clinics of North America focuses on Imaging of the Small Bowel and Colorectum, and is edited by Dr. Judy Yee. Articles will include: CT Enterography; MR Enterography; Low Dose CT Colonography Technique; MR of Rectal Cancer; MRI of Perianal Fistula; Imaging Workup of Acute and Occult Lower GI Bleeding; Dual Energy CT of the Bowel: Benefits, Pitfalls, and Future Directions; Lower GI Tract Applications of PET/CT and PET/MR; Imaging of the Post-operative Colon; Updates in Crohn's Disease Reporting and Nomenclature; CT Colonography Pearls and Pitfalls; Current Status of MR Colonography; and more!