Unusual endoscopic appearance of B-cell lymphoma of the small bowel in a patient with Crohn's disease: a case report

The case report of a 42-year-old man describes MALT type B-cell lymphoma of the jejunum in Crohn's disease (lasting 10 years) presented with quite unusual endoscopic appearance. The patient was treat- ed with azathioprine for 3 last years. Both Ebstein-Barr and cytomegalovirus were negative. A 3-centimetre long segment of pathological appearance of the bowel was found in the proximal jejunum, transverse folds were swollen, no villi were present and pathological tumorous vascularization was seen. The risk of lymphoma in inflammatory bowel disease is low in general. This case report shows gastroenterologists the possible unusual enteroscopic appearance of jejunal lymphoma.