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  • Title: [Disseminated MALT lymphoma associated with macroglobulinemia].
    Author: Iwase S, Takahara S, Sekikawa T, Ito K, Nakada S, Yamazaki Y, Yamada J, Kobayashi M, Yamada H.
    Journal: Rinsho Ketsueki; 2000 Nov; 41(11):1183-8. PubMed ID: 11193437.
    Abstract:
    We report a case of disseminated MALT lymphoma with macroglobulinemia in an 80-year-old man who presented with a persistent fever. A radiograph of the chest showed infiltration of the left lung and pleural effusion of the right lung. The fluid contained numerous atypical lymphoid cells, which were positive for CD19, CD20, and HLA-DR, and negative for CD5 and CD10. Analysis of a pleural biopsy sample demonstrated no abnormality. A CT scan of the abdomen showed extensive thickening of the wall of the stomach adjacent to a peritoneal mass. Endoscopic examination disclosed antral ulceration. Histopathological examination of gastric samples revealed infiltration by centrocyte-like cells and lymphoepithelial lesions. Serum electrophoresis detected a macroglobulin peak at 34.5 g/l, and immunoelectrophoresis revealed an IgM kappa component. A bone marrow aspirate showed infiltration by the same lymphoid cells as those in the pleural fluid. A chromosome study of the lymphoid cells from both the bone marrow and pleural fluid showed a normal karyotype. The final diagnosis was MALT lymphoma involving the stomach, lungs and bone marrow. The patient did not consent to chemotherapy, and instead was given oral prednisolone. He died of respiratory distress one year and four months after diagnosis. Autopsy revealed wide dissemination of the tumor cells.
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