Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1997-4-2
pubmed:abstractText
Polyclonal B lymphocytosis was found in four patients having clinical and hematologic features resembling those of hairy cell leukemia (HCL). All four patients were women between 37 and 67 years of age. Three patients had splenomegaly. Lymphadenopthy was absent or slight. Persistent lymphocytosis was seen in all the patients, and anemia and/or thrombopenia was observed in three of the patients. Abnormal lymphocytes have long microvilli and prominent membranous ruffles on their surfaces. Bone marrow aspirates and biopsy specimens showed increased numbers of abnormal lymphocytes with round nuclei and abundant pale cytoplasm. Although these findings were similar to those of HCL, studies of Ig gene rearrangements and expression showed the polyclonal proliferation of B cells. We called this new disease hairy B-cell lymphoproliferative disorder (HBLD). All four patients exhibited a polyclonal increase in serum IgG. The morphology of the cells in HBLD was more similar to that of leukemia cells of a variant form of HCL (HCL-Japanese variant) than to typical HCL cells. The surface IgG+, CD5-, CD11c+, CD22+, CD24-, CD25- phenotype and the weak tartrate-resistant acid phosphatase activity in the cells were identical to those of HCL cells of the Japanese variant. Our findings suggest that the B cells in HBLD are the nonmalignant counterpart of leukemic B cells in HCL-Japanese variant.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0006-4971
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
89
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2008-14
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed-meshheading:9058722-Adult, pubmed-meshheading:9058722-Aged, pubmed-meshheading:9058722-B-Lymphocytes, pubmed-meshheading:9058722-Bone Marrow, pubmed-meshheading:9058722-Clone Cells, pubmed-meshheading:9058722-Female, pubmed-meshheading:9058722-Gene Rearrangement, B-Lymphocyte, pubmed-meshheading:9058722-Gene Rearrangement, T-Lymphocyte, pubmed-meshheading:9058722-HLA-DR Antigens, pubmed-meshheading:9058722-Humans, pubmed-meshheading:9058722-Immunoglobulin Heavy Chains, pubmed-meshheading:9058722-Immunoglobulin Light Chains, pubmed-meshheading:9058722-Immunoglobulin kappa-Chains, pubmed-meshheading:9058722-Immunophenotyping, pubmed-meshheading:9058722-Japan, pubmed-meshheading:9058722-Leukemia, Hairy Cell, pubmed-meshheading:9058722-Lymphocytosis, pubmed-meshheading:9058722-Middle Aged, pubmed-meshheading:9058722-Phenotype, pubmed-meshheading:9058722-Receptors, Antigen, B-Cell
pubmed:year
1997
pubmed:articleTitle
Polyclonal B-cell lymphocytosis with features resembling hairy cell leukemia-Japanese variant.
pubmed:affiliation
Department of Hematology and Oncology, Osaka University Medical School, Japan.
pubmed:publicationType
Journal Article