id author title date pages extension mime words sentences flesch summary cache txt cord-004998-wuixnqy5 Arnold, W. Identic viral infections in four cases of malignant lymphoepithelioma 1978 .txt text/plain 421 31 57 The viral particles found in this study are not yet described in human lymphoepithelioma; they are very similar to those found in tissue culture lines derived from Burkitt's lymphoma (Epstein, 1962) and from nasopharyngeal carcinoma (De The et al., 1969) . The demonstration of herpes virus like nucleocapsids in malignant lymphoepithelioma might be of great interest because many of those patients show a changing level of EB-virus antibody titer during therapy or recurrence of the disease (Lynn et al., 1977) . This fact points at the possible role of a specific viral infection although it has to be mentioned that elevated EB-virus antibody titer is also present in mononucleosis or recurrent tonsillitis (Veltri et al., 1975) . Lymphoblastoid transformation and presence of herpes-type viral particles in a Chinese nasopharyngeal tumor cultured in vitro Prognosis of nasopharyngeal carcinoma by Epstein-Barr virus antibody titer ./cache/cord-004998-wuixnqy5.txt ./txt/cord-004998-wuixnqy5.txt