title: Extreme hyperlymphocytosis.
authors.affiliation: Department of Hematology/Oncology, Brown University, Providence, RI, USA.
authors.forename: David
authors.initials: D
authors.lastname: Berz
authors.forename: Nancy J
authors.initials: NJ
authors.lastname: Freeman
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D006801:Humans; D015461:Leukemia, Prolymphocytic, T-Cell / Q000150:complications* / Q000175:diagnosis* / Q000628:therapy; D008218:Lymphocytosis / Q000209:etiology*; D008297:Male; D013577:Syndrome