title: Richter's syndrome: diffuse histiocytic lymphoma in patients with chronic lymphocytic leukemia. A report of five cases and review of the literature.
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D007945:Leukemia, Lymphoid / Q000150:complications* / Q000401:mortality / Q000473:pathology / Q000628:therapy; D008198:Lymph Nodes / Q000473:pathology; D008214:Lymphocytes / Q000648:ultrastructure; D016403:Lymphoma, Large B-Cell, Diffuse / Q000150:complications* / Q000401:mortality / Q000473:pathology / Q000628:therapy; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D013154:Spleen / Q000473:pathology; D013577:Syndrome