Abstract:
:B-cell diseases are classified on the basis of the normal differentiation stages. We report here a case of a patient with a long history of leukocytosis, splenomegaly without lymphadenopathy, and hyperviscosity symptoms. Clinically, the patient's diagnosis was leukemic Waldenstrom macroglobulinemia. Chromosomal analysis revealed translocation t(2;7)(p11;q22) along with disease progression. Death occurred from pulmonary infection at 46 months after the initial presentation. At autopsy, malignant lymphocytes were found in the marginal areas of the spleen with spreading to the bone marrow and the liver. The histologic findings were consistent with splenic marginal zone lymphoma. We examined the sequences of the immunoglobulin V(H) gene in cells from the initial peripheral blood and from the spleen at autopsy and found that the sequences were identical and had no somatic hypermutation. Macroglobulinemia can occur in various B-cell disorders, including splenic marginal zone lymphoma, even with the transformation of unmutated B-lymphocytes.
journal_name
Int J Hematoljournal_title
International journal of hematologyauthors
Sekikawa T,Takahara S,Kawano T,Nakada S,Ito K,Iwase S,Yamada H,Kobayashi M,Horiguchi-Yamada Jdoi
10.1007/BF02982811subject
Has Abstractpub_date
2002-12-01 00:00:00pages
453-9issue
5eissn
0925-5710issn
1865-3774journal_volume
76pub_type
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