Waldenström macroglobulinemia

(VOL-den-strurm MA-kroh-GLAH-byoo-lih-NEE-mee-uh) An indolent (slow-growing) type of non-Hodgkin lymphoma marked by abnormal levels of IgM antibodies in the blood and an enlarged liver, spleen, or lymph nodes. Also called lymphoplasmacytic lymphoma.