Obesity Is a Risk Factor Associated with -negative MALT Lymphoma of Stomach.

Objective: More than 90% of gastric mucosa-associated lymphoid tissue (MALT) lymphomas are attributed to infections. However, the pathogenesis of -negative MALT lymphomas is controversial, and additional etiologies need to be investigated.

Materials: A retrospective study of gastric MALT lymphoma cases over a 15-year period revealed 56 cases.

An Incidental Finding of Gastric Mucosa-Associated Lymphoma (MALToma) in a Sleeve Gastrectomy with Literature Review.

Mucosal-associated lymphoid tissue (MALT) lymphoma can typically be identified as a mass lesion or nodularity endoscopically and macroscopically. We report an incidental finding of a gastric mucosal-associated lymphoid tissue (MALT) lymphoma in a sleeve gastrectomy specimen with no gross examination findings.