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Association of Epstein-Barr virus with sinonasal angiocentric T cell lymphoma
1Department of Pathology, Research Foundation, Royal Victoria Eye and Ear Hospital, Dublin, Ireland.
Aim:
To investigate whether non-Hodgkin's lymphomas arising in the sinonasal region or Waldeyer's ring contain the Epstein-Barr virus (EBV) genome in lesional tissue.
Method:
Sections from paraffin wax blocks of 22 lymphoid proliferations arising in the sinonasal region or Waldeyer's ring were studied with EBV encoded RNAs (EBER-1 and -2) using in situ hybridisation.
Results:
EBV was detected in nuclei of tumour cells of five of seven T cell lymphomas and in nuclei of two of seven diffuse, large cell immunoblastic lymphomas of B phenotype in the sinonasal region. Of tumours arising in Waldeyer's ring, two of 10 non-Hodgkin's lymphomas (both large cell) were positive, as was a single case of Hodgkin's disease. Lymphoma of other types, including Western type Burkitt's lymphoma, and nodular and diffuse small cleaved cell lymphoma, were negative.
Conclusion:
EBV is highly associated with large cell lymphomas especially T cell lymphomas of sinonasal origin in the indigenous Irish population, underlining the importance of this virus in nasopharyngeal lymphomas in Northern European as well as Asian populations.