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  • Title: Epstein-Barr virus-specific serodiagnostic tests in carcinomas of the head and neck.
    Author: Ringborg U, Henle W, Henle G, Ingimarsson S, Klein G, Silfversward C, Strander H.
    Journal: Cancer; 1983 Oct 01; 52(7):1237-43. PubMed ID: 6309355.
    Abstract:
    Sera from 256 patients with cancers of the head and neck were examined for their profiles of IgG and IgA antibodies to Epstein-Barr virus (EBV)-specific, viral capsid antigen (VCA), the diffuse (D) and the restricted (R) components of the early antigen (EA) complex, and the EBV-associated nuclear antigen (EBNA), in order to assess the value of these procedures in the routine diagnosis of poorly or undifferentiated nasopharyngeal carcinoma (NPC). In 13 NPC patients, the carcinoma had invaded cervical lymph nodes, and their sera revealed, in addition to high IgG anti-VCA titers, elevated levels of IgA antibodies to VCA, of IgG antibodies to D, and most also had IgA anti-D. Such profiles were seen in very few of the patients with carcinomas at other sites of the head and neck. They had not developed in four NPC patients whose tumors were limited to the postnasal space, and in three patients with other tumors at that site. Among 15 patients with cervical node metastases from occult primary tumors, 2 had EBV-specific antibody profiles compatible with NPC, 1 was judged to have NPC on clinical grounds, and the other died of a pulmonary carcinoma, or possibly pulmonary metastases. In 4 of the remaining 13 patients with occult tumors, the primary site was found outside the nasopharynx, whereas it escaped detection in the other 9. These results lend further support to the usefulness of the EBV-specific serology to clinicians in the diagnosis of NPC, especially in cases of lymph node invasion by undetected primary tumors. The data also emphasize the need of complementing the serology with the examination of biopsies for the presence of EBV deoxyribonucleic acid (DNA) or, more readily performed, EBNA-positive carcinoma cells.
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