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Sorted By Test Name - Mayo Medical Laboratories

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EBVE<br />

110090<br />

lymphoproliferative syndromes, especially in patients who have undergone renal or bone marrow<br />

transplantation and in those who have AIDS.<br />

Useful For: The test is indicated for patients with malignant lesions of type 2 and 3 in whom NPC is<br />

suspected; for example, patients with metastases to the cervical lymph nodes from an unknown primary<br />

source.<br />

Interpretation: Presence of IgA class antibody to the viral capsid antigen (VCA) of Epstein-Barr virus<br />

(EBV) indicates active replication of EBV. High levels of IgA class antibody to the VCA supports the<br />

clinical diagnosis of NPC. These antibodies are present in 84% of patients with type 2 NPC. IgA directed<br />

against VCA is positive for type 1 carcinoma in only 16% of cases. The specificity of the test is such that<br />

82% to 91% of healthy blood donors and patients who do not have NPC have negative responses.<br />

Reference Values:<br />

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