Primary Effusion Lymphoma (PEL)
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A rare and fast-growing form of non-Hodgkin’s lymphoma that most often occurs in immunocompromised patients, such as people with HIV. PEL is associated with human herpesvirus-8 (HHV-8) infection or Epstein-Barr virus and is characterized by malignant effusions (abnormal collections of fluid) in body cavities.