Simultaneous primary low-grade mucosa-associated lymphoid tissue lymphoma of stomach and duodenum.

摘要

With the introduction of the entity MALT (mucosa-associated lymphoid tissue) lymphoma by Isaacson and Wright, more and more MALT lymphomas have been diagnosed. Most MALT lymphomas arise from gastrointestinal organs as well as from extragastrointestinal organs such as the salivary gland, thyroid gland, lung, bladder, and skin. In the majority of the studies, the stomach is the most common site involved, accounting for more than 75% of gastrointestinal tract lymphomas [1], while simultaneous MALT lymphoma of stomach and duodenum is very rare. To our knowledge, very few cases of primary gastrointestinal lymphoma that involve both stomach and duodenum are reported in the literature. We report here a very rare case with MALT lymphoma arising in both stomach and duodenum and review the literature.