Abstract
Primary lymphoma of the colon is a rare tumor of the GI tract that comprises only 0.2-1.2% of all colonic malignancies and most commonly involve the cecum followed by the right colon and sigmoid. They can mimic features of ulcerative colitis and in this article we reporting a colonic lymphoma, which misdiagnosed as a refractory IBD. This is a middle- aged man presenting with abdominal pain and bloody diarrhea, which is diagnosed as ulcerative colitis, but due to the refractory symptoms and non-responsiveness, he has undergone further evaluation, which revealed the primary diffuse large B -cell lymphoma of the colon as the main culprit of patients’ symptoms and referred for systemic chemotherapy. Colonic lymphomas can be presented as a mucosal type and characterized by small superficial erosive and hyperemic changes within a mucosal layer that can mimic the features of ulcerative colitis, so in any refractory IBD, their possibility should keep in mind.
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Copyright
© 2015, Jundishapur Journal of Oncology. This open-access article is available under the Creative Commons Attribution-NonCommercial 4.0 (CC BY-NC 4.0) International License (https://creativecommons.org/licenses/by-nc/4.0/), which allows for the copying and redistribution of the material only for noncommercial purposes, provided that the original work is properly cited.