<prompt> All are HIV associated malignancies except-Kaposis sarcomaLung carcinomaNHLAnogenital CA  <response>: AIDS-related lymphomas can be divided into three group -SystemicLymphomas involving lymph nodes as well as extranodal visceral sites constitute 80 of all lymphomas.The most common extranodal site affected is CNSAggressive B cell tumoursPrimary CNS lymphomaCNS is the primary site of lymphomatous involvement in 20 AIDS patient Note these primary CNS lymphomas are in addition to those involved by the systemic lymphomas.Body cavity based lymphomaRareHas an unusual distributionIt grows exclusively in body cavities in the form of pleural peritoneal and pericardial effusions 