primary effusion lymphoma

Definition / meaning of primary effusion lymphoma

A rare, aggressive (fast-growing) type of B-cell non-Hodgkin lymphoma marked by an abnormal build-up of fluids in a body cavity. It usually occurs together with a human herpesvirus in people who have weakened immune systems, such as in AIDS.

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Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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