除菌治療により消失し3年間経過観察しえた胃MALTリンパ腫の1例

Gastric Lymphoma of Mucosa-associated Lympoid Tissue Which Continuously Regressed during Three Years after Eradication of Helicobacter pylori, Report of a Case

要旨　患者は62歳，女性．上腹部痛の精査にて上部消化管内視鏡検査を施行．胃前庭部に発赤を伴う小びらん，胃角部大彎にareaの乱れを認め，病理組織学的検査にてMALTリンパ腫と診断．また同時に行った生検，rapid urease testによりHelicobacter pylori（H. pylori）陽性と判定した．MALTリンパ腫に対しH．Pylori除菌治療を施行したところ，治療後，リンパ腫は消失した．除菌治療3年後においてもリンパ腫の再発はなく，H. Pyloriも陰性であった．

　A 62-year-old woman was admitted to our hospital because of upper abdomial pain. The gastro-endoscopic picture demonstrated reddish erosions at the antrum and diffuse granular mucosa at the greater curvature of the angular region. Histopathological examination by biopsy and strip biopsy revealed the findings of gastric MALT lymphoma. At the same time, the biopsy specimen and rapid urease test were positive for Helicobacter pylori (H. pylori). After eradication of H. pylori, the gastric lymphoma regressed. Three years after eradication, lymphoma has regressed continuously and has been also negative for H. pylori.