Indolent lymphomas other than follicular and marginal zone lymphomas.

This article addresses two of the less common entities among clinically indolent B-cell non-Hodgkin lymphomas: small lymphocytic lymphoma and lymphoplasmacytic lymphoma, also known as "Waldenstrom's macroglobulinemia." Differential diagnoses and prognostic factors are discussed for each as well as new treatment options and stem cell transplantation.