By December 31, 1995, in the United States, a cumulative total
of 513,846 AIDS cases and 310,849 deaths due to AIDS had been
reported to the Centers for Disease Control (CDC). It is
estimated that over 4.4 million cases of AIDS have occurred
worldwide and over 20 million people have been infected with the
virus since the beginning of the epidemic. Up to 65% of HIV-
positive patients currently develop one of two main neoplasms
identified as AIDS-related tumors: Kaposi's sarcoma (KS) and
non-Hodgkin's lymphoma (NHL). The incidence of the established
HIV-related malignancies will continue to rise as the number of
infected patients increases. As life expectancies of HIV-
infected patients lengthen, they will also go on to develop
common non-HIV-related malignancies, such as colon, prostate,
and lung cancer.[3,5] Thus, issues related to the appropriate
management of these illnesses will increase in importance. Other
virally initiated malignancies with longer latency periods
between oncogenic transformation and clini