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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1995-11-13
pubmed:abstractText
We studied open-lung biopsies from 17 patients with pulmonary lymphomatoid granulomatosis (LYG) using paraffin-section immunostains and Epstein-Barr virus (EBV) RNA in situ hybridization to assess the phenotype of these unique tumors and to clarify the role of EBV infection. Histologically, all cases demonstrated the characteristic mixed mononuclear cell infiltrate of lymphomatoid granulomatosis with variable numbers of cytologically atypical large lymphoid cells in a background of small lymphocytes. Paraffin-section immunostains in all cases showed a predominance of T lymphocytes. A minor population of CD20-positive large B lymphocytes was identified in 11 cases; immunoglobulin light-chain restriction was demonstrated in four of these and immunoglobulin gene rearrangements in another case. Nuclear labelling for EBV RNA was detected in 10 of these 11 cases and was confined to the population of large B lymphocytes. Staining for CD20 was absent in the remaining six cases, as was nuclear labeling for EBV RNA. However, the large atypical lymphoid cells stained for T-cell-lineage-specific antibodies in three of these cases. We conclude that some cases of lymphomatoid granulomatosis are B-cell lymphoma associated with EBV infection, whereas others are of T-cell origin and are probably unrelated to EBV infection.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0147-5185
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1300-12
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Lymphomatoid granulomatosis. Evidence of immunophenotypic diversity and relationship to Epstein-Barr virus infection.
pubmed:affiliation
Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota 55905, USA.
pubmed:publicationType
Journal Article