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  • Title: [Primary macroglobulinemia with t(11;18) (q21;q21)].
    Author: Hirase N, Miyamura T, Ishikura H, Yufu Y, Nishimura J, Nawata H.
    Journal: Rinsho Ketsueki; 1996 Apr; 37(4):340-5. PubMed ID: 8847806.
    Abstract:
    This is the first case of primary macroglobulinemia with t(11;18) (q21;q21) reported in the literature. A 77-year-old man was admitted to a hospital in December, 1994, with acute renal failure and pleural effusion. He was treated with prednisolone pulse therapy and his symptoms improved. He was referred to our hospital for further examination. Analysis of blood chemistry revealed macroglobulinemia (IgM-kappa). There were no other findings that would indicate a diagnosis of malignant lymphoma. A complete blood count revealed a hemoglobin level of 8.7 g/dl and a white blood cell count of 5,300/microliters with 11% abnormal lymphoid cells. Immunologic and karyotype analyses revealed that these abnormal cells were positive for IgM-kappa, CD19, and CD20, negative for CD5, and CD10, and had t(11;18) (q21;q21). The bone marrow had also been infiltrated by 8.6% abnormal lymphoid cells. Six other cases with t(11;18) (q21;q21) have been reported including 5 of small lymphocytic lymphoma and 1 of mucosa-associated lymphoid tissue-type lymphoma. The tumor cells in these cases were the same as in our case. Therefore, our report is in agreement with the finding that t(11;18) (q21;q21) might be one of the characteristic chromosomal abnormalities in mature B-lymphoid neoplasms.
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