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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-2
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pubmed:dateCreated |
1993-3-10
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pubmed:abstractText |
A morphological, immunophenotypic and ultrastructural study, cell cycle estimation, DNA and cytogenetic analysis were performed in ten cases of B-MALT lymphomas. Five had low grade lymphoma and five had high grade. Low and high grade cases showed the same cells but in different percentages: These included centrocyte-like cells with occasional monocytoid cytoplasmic changes, and centroblast-like cells. However, in high grade cases more dysplastic and large cells were present. All cellular types showed an important development of rough endoplasmic reticulum. In all cases a large panel of monoclonal antibodies was employed to study the B-cell immunophenotype. Ki-67 positivity ranged from 5% to 30% in low-grade cases and from 50% to 70% in high-grade cases. Gene rearrangement analysis showed rearrangement with Jh probe and half of the cases were also rearranged with the Kde probe (Kappa constant chain gene). A rearrangement banding pattern with TCR genes was not present in any of the cases. Cytogenetic study showed complex alterations in high grade cases and a normal karyotype in low grade lymphomas. Only one case had rearrangement for the bcl-2 probe.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
1042-8194
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
8
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
87-96
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1493475-Female,
pubmed-meshheading:1493475-Gastric Mucosa,
pubmed-meshheading:1493475-Gastrointestinal Neoplasms,
pubmed-meshheading:1493475-Gene Rearrangement,
pubmed-meshheading:1493475-Humans,
pubmed-meshheading:1493475-Intestinal Mucosa,
pubmed-meshheading:1493475-Lymphoid Tissue,
pubmed-meshheading:1493475-Lymphoma,
pubmed-meshheading:1493475-Male,
pubmed-meshheading:1493475-Thyroid Neoplasms
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pubmed:year |
1992
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pubmed:articleTitle |
A multiparametric study of malignant lymphoma of mucosa associated lymphoid tissue (MALT).
|
pubmed:affiliation |
Department of Pathology, Immunology and Genetics, Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|