A Newly Developed Gastric MALT Lymphoma after Cure of Jejunal MALT Lymphoma : A Case Report

Min, Sun Kee; Chang, Young Woon; Kim, Hyo Jong; Lee, Dong Keun; Han, Yo Seb; Lee, Byoung Lee; Dong, Seok Ho; Kim, Byung Ho; Lee, Joung Il; chang, Rin

Abstract

The gastrointestinal tract is the most common site of extranodal lymphoma. Recently, the incidence of primary gastrointestinal lymphoma is increasing with the development of endoscopy and radiological tests. Mucosa-associated lymphoid tissue (MALT) lymphomas are histologically characterized by a proliferation of neoplastic marginal zone-related cells that invade epithelial structures and form characteristic lymphoepithelial lesions. MALT lymphomas are the most common subset of the extranodal lymphoma, including primary gastrointestinal lymphoma. In early reports, MALT lymphoma is known as a localized disease confined to the site of origin for a prolonged period after diagnosis in approximately 90% of the patients. However, it is recently, suggested that about one third of MALT lymphomas are disseminated diseases. In Korea, gastric MALT lymphoma and small intestinal MALT lymphoma have been already reported respectively, but there is no report of gastric MALT lymphoma newly developed after cure of jejunal MALT lymphoma. We present the rare case with a review of literature.