title: Endoscopic diagnosis and staging of mucosa-associated lymphoid tissue lymphoma.
abstract: OBJECTIVE
  The role of endoscopy, including endoscopic ultrasound, in the diagnosis and management of mucosa-associated lymphoid tissue lymphomas of the stomach has evolved steadily in the last two decades. The present review summarizes recent findings and puts them in context with studies on the diagnosis and management of mucosa-associated lymphoid tissue lymphoma published earlier.
  
  
  RESULTS
  Several recent studies have emphasized the crucial role of endoscopic ultrasound in treatment planning in patients with gastric mucosa-associated lymphoid tissue lymphoma. This is important as early-stage gastric mucosa-associated lymphoid tissue lymphomas can be managed just by the eradication of Helicobacter pylori by appropriate antibiotic regimens. However, the more advanced lesions are treated with much more invasive treatment regimens involving radical gastrectomy, chemotherapy or radiation, or all.
  
  
  CONCLUSIONS
  Endoscopic ultrasound staging is highly accurate in predicting response to Helicobacter pylori eradication in patients with gastric mucosa-associated lymphoid tissue lymphoma. Normalization of gastric wall thickness and architecture can be used to monitor tumor regression following treatment. Endoscopic ultrasound findings can also be used to identify treatment failures and relapses and can help identify patients who need more aggressive therapy.
authors.affiliation: Division of Gastroenterology and Hepatology, Saint Louis University School of Medicine, Saint Louis, MO 63105, USA.
authors.forename: Mohit
authors.initials: M
authors.lastname: Mehra
authors.forename: Banke
authors.initials: B
authors.lastname: Agarwal
mesh_terms: D016099:Endoscopy, Gastrointestinal / Q000379:methods; D019160:Endosonography / Q000379:methods; D005260:Female; D005770:Gastrointestinal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D012680:Sensitivity and Specificity