Adduci, Alexander J.Phillips, CatherineHarvin, Howard2016-08-092015Adduci, Alexander J., Catherine H. Phillips, and Howard Harvin. 2015. “Prospective diagnosis of marginal ulceration following Roux-en-Y gastric bypass with computed tomography.” Radiology Case Reports 10 (2): 1063. doi:10.2484/rcr.v10i2.1063. http://dx.doi.org/10.2484/rcr.v10i2.1063.1930-0433http://nrs.harvard.edu/urn-3:HUL.InstRepos:27822157Marginal ulcers are reported to be the most common complication following Roux-en-Y gastric bypass surgery. Despite their frequency, they are rarely diagnosed prospectively with cross-sectional imaging. We present four cases in which the diagnosis of marginal ulceration was made prospectively with CT and confirmed with endoscopy.en-USJournal Article2016-08-0910.2484/rcr.v10i2.1063