title: [A case of B-cell lymphoma of stomach origin with central nervous system infiltration at the relapse].
mesh_terms: D000368:Aged; D001402:B-Lymphocytes; D006801:Humans; D008223:Lymphoma / Q000473:pathology / Q000556:secondary*; D008297:Male; D008577:Meningeal Neoplasms / Q000556:secondary*; D013274:Stomach Neoplasms / Q000473:pathology*