Clinical features and temporal trends in H. pylori negative gastric maltoma.

Background: Mucosa-Associated Lymphoid Tissue (MALT) lymphoma or MALToma is a type of non-Hodgkin lymphoma arising in the gastric mucosa that has largely been associated with Helicobacter pylori (H. pylori) infection. However, less than 10% of gastric MALTomas can occur with a negative H.