[Misinterpreted lymphadenopathy and thrombocytopenia as unrecognised initial symptoms of an HIV-infection].

In a 28-year-old woman and a 30-year-old man with lymphadenopathy, shown by histopathology to be follicular hyperplasia, and in a 40-year-old woman and a 40-year-old man with a thrombocytopenia, HIV-infection was not diagnosed until years later. Three of the four patients did not belong to a 'classical high-risk group' for HIV/AIDS. All patients, meanwhile, suffered from minor or major complications. Moreover, the number of CD4+ cells had decreased to < or = 200/microl before antiretroviral therapy was started. After treatment, all four patients were in reasonable to good condition. An HIV-infection should be considered in every case of reactive lymphadenopathy or thrombocytopenia.