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  • Title: Histological varieties of Epstein-Barr virus-related lymph node lesion resembling autoimmune disease-like clinicopathological findings in middle-aged and elderly patients: a study of six cases.
    Author: Kojima M, Sugiura I, Itoh H, Shimizu K, Murayama K, Motoori T, Shimano S, Masawa N, Nakamura S.
    Journal: Pathol Res Pract; 2006; 202(8):609-15. PubMed ID: 16824704.
    Abstract:
    Six cases were studied to further clarify clinicopathological findings of Epstein-Barr virus (EBV)-related lymph node lesions showing autoimmune disease-like clinicopathological findings (EBVAID) in middle-aged and elderly patients. The patients, four males and two females, ranged in age from 53 to 74 years, with a median age of 62 years. Clinically, they were characterized by systemic lymphadenopathy, "B"symptoms, polyclonal hypergammaglobulinemia, elevated serum lactate dehydrogenase and a transient presence of various autoantibodies, as well as an infrequent presence of atypical lymphocytosis in peripheral blood. Two cases were associated with idiopathic thrombocytopenic purpura. The clinical course was self-limiting. Histologically, three patterns could be delineated: pattern A, follicular hyperplasia with pronounced arborizing vasculature in the expanded paracortex (n=3); pattern B, follicular hyperplasia with pronounced interfollicular B-immunoblastic/plasma cell proliferation (n=2); and pattern C, paracortical hyperplasia containing numerous large transformed lymphocytes (n=1). In situ hybridization demonstrated a varying number of EBV-infected lymphocytes in the germinal center and in the interfollicular area. Polymerase chain reaction analysis demonstrated that neither clonal rearrangement of T-cell receptor gamma-chain nor immunoglobulin heavy-chain rearrangement was detected in the three cases examined. Although EBVAID appears to be rare in middle-aged and older adults, EBVAID exhibits histological variations and should be added to the differential diagnosis of various atypical or malignant lymphoproliferative disorders, in particular autoimmune-disease-associated lymphadenopathy and angioimmunoblastic T-cell lymphoma with a hyperplastic germinal center in middle-aged and elderly patients.
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