Splenic Diffuse Red Pulp Small B-Cell Lymphoma

**Semantic type:** Neoplastic Process

**Definition:** 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.

**Synonyms:** - Splenic diffuse red pulp small B-cell lymphoma