Waldenström's macroglobulinemia

noun

Wal·​den·​ström's macroglobulinemia

ˈväl-dən-ˌstremz-, -ˌstrœmz-

: lymphoplasmacytic lymphoma marked by an elevated serum concentration of a monoclonal antibody of the class IgM and characterized especially by hyperviscosity of blood, lymphadenopathy, hepatosplenomegaly, anemia, and peripheral neuropathy