label: Splenic Diffuse Red Pulp Small B-Cell Lymphoma
label_lc: splenic diffuse red pulp small b-cell lymphoma
description: An uncommon, indolent B-cell non-Hodgkin lymphoma composed of small B-lymphocytes involving the red pulp of the spleen, bone marrow, and peripheral blood.  Patients often have massive splenomegaly.  The peripheral blood examination reveals villous lymphocytes.