Helicobacter pylori and lymphoproliferative disorders

Area of Science:

• Gastroenterology
• Oncology
• Pathology

Background:

• Primary gastric lymphoma of mucosa-associated lymphoid tissue (MALT) is a distinct entity with increasing knowledge.
• Helicobacter pylori infection is strongly implicated in the development and progression of gastric MALT lymphoma.

Purpose of the Study:

• To review current understanding of gastric MALT lymphoma.
• To highlight the role of H. pylori and diagnostic/therapeutic strategies.

Main Methods:

• Review of epidemiological, histomorphological, and molecular-biological data.
• Emphasis on endoscopic biopsy and ultrasound for diagnosis and staging.
• Evaluation of therapeutic options including H. pylori eradication, surgery, and radiochemotherapy.

Main Results:

• H. pylori infection plays a critical role in gastric MALT lymphoma.
• Histological grade and disease stage are key prognostic and therapeutic factors.
• H. pylori eradication is effective for localized low-grade MALT lymphoma; surgery and radiochemotherapy are also effective.

Conclusions:

• Gastric MALT lymphoma diagnosis and staging rely on endoscopic methods.
• H. pylori eradication is a viable treatment for early-stage disease.
• Further randomized trials are needed to compare surgical versus conservative treatment strategies.