Clinicopathological Features of MALT Lymphoma and Follicular Lymphoma of the Duodenum Tsuneya Nakamura 1 , Takashi Suzuki 1 , Akira Matsuura 1 , Kazuhiko Ohashi 1 , Takio Yokoi 2 1Department of Gastroenterology, Aichi Cancer Center Hospital 2Department of Pathology and Clinical laboratories, Aichi Cancer Center Hospital Keyword: 十二指腸悪性リンパ腫 , MALTリンパ腫 , 濾胞性リンパ腫 , H. pylori , 白色顆粒状隆起 pp.1529-1540
Published Date 2001/11/25
DOI https://doi.org/10.11477/mf.1403103365
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 It is emphasized that malignant lymphoma arising in the duodenum may consist of two main groups, i.e.,MALT and follicular lymphomas. These two lymphomas reveal distinct clinicopathologic features, respectively, and should be distinguished from each other from the view point of the adoption of H. pylori eradication. Duodenal MALT lymphoma preferably affected the bulbar area, revealed a protruded lesion, erosions, and ulcers, and regressed due to H. pylori eradication in most cases. These findings were generally similar to those of gastric MALT lymphoma.

 On the other hand, follicular lymphoma affected the duodenal second portion or more distal part, with scattered whitish granular lesions. However it didn't affect the bulb.

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