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RT of Gastric Lymphomas
• Marginal Zone Lymphoma (MZL)
– Most common
– RT is the standard treatment in North America for
“H. Pylori-
independent”
Gastric MZL (or “MALT”)
– H. pylori –not present
– H. pylori responded to antibiotics, but MZL persists for a long time
– H. pylori resistant to multiple antibiotics, MZL persists
– Failure of antibiotics - MZL progression
– Failure of antibiotics - difficult symptoms
•
Diffuse Large B-Cell Lymphoma
(many are transformed
MZL)
– RT consolidation after R-CHOP induced CR