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  • Title: EBER in situ hybridization differentiates carcinomas originating from the sinonasal region and the nasopharynx.
    Author: Hwang TZ, Jin YT, Tsai ST.
    Journal: Anticancer Res; 1998; 18(6B):4581-4. PubMed ID: 9891522.
    Abstract:
    Epstein-Barr virus (EBV) has a well-established association with nasopharyngeal carcinoma (NPC), while its association with sinonasal carcinoma is still controversial. The role of EBV in sinonasal carcinoma and the potential value of EBER is situ hybridization in differentiating carcinomas originating from these anatomically neighboring regions were investigated. EBER in situ hybridization was applied to detect EBV in the specimens of surgically proved sinonasal carcinoma and the biopsies of carcinoma of the nasopharynx. EBER in situ hybridization was performed on paraffin embedded tissues by using PCR-derived, digoxigenin-labeled EBER-1 DNA probes. EBV was detected in 2 of 31 (6.5%) surgical specimens of sinonasal carcinoma, including 1 keratinizing squamous cell carcinoma and 1 adenocarcinoma. EBV was detected in all of 31 (100%) biopsies of carcinomas of the nasopharynx, including 1 keratining squamous cell carcinoma, 15 nonkeratinizing carcinomas, 14 undifferentiated carcinomas, and 1 adenocarcinoma. The present study does not support the role of EBV in the development of sinonasal carcinoma as does in carcinoma of the nasopharynx. EBER in situ hybridization is a useful adjunct for differentiating carcinomas originating from the sinonasal region and the nasopharynx.
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