title: Benign lymphocytosis and reactive neutrophilia. Laboratory features provide diagnostic clues.
abstract: Peripheral blood leukocytoses are some of the most common abnormalities observed in the clinical hematology laboratory. This article discusses both benign lymphocytosis and reactive neutrophilia. Laboratory features and clinical syndromes associated with each of these specific leukocytoses and diagnostic considerations including differentiation from malignant disorders are addressed.
authors.affiliation: Department of Pathology, Northwestern University Medical School, Chicago, Illinois.
authors.forename: L
authors.initials: L
authors.lastname: Peterson
authors.forename: M A
authors.initials: MA
authors.lastname: Hrisinko
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D007244:Infectious Mononucleosis / Q000097:blood; D007964:Leukocytosis / Q000097:blood* / Q000209:etiology; D008214:Lymphocytes / Q000473:pathology; D008218:Lymphocytosis / Q000097:blood* / Q000209:etiology; D008232:Lymphoproliferative Disorders / Q000097:blood / Q000175:diagnosis; D009504:Neutrophils / Q000473:pathology*