title: Childhood neutropenia.
abstract: Neutropenia can occur because of abnormalities of marrow stem cell development, poor release of polymorphonuclear leukocytes from the marrow reserve, or decreased survival of polymorphonuclear leukocytes. Some of the more important clinical entities are discussed.
mesh_terms: D000375:Aging; D000380:Agranulocytosis / Q000209:etiology*; D000917:Antibody Formation; D001327:Autoimmune Diseases / Q000150:complications; D001854:Bone Marrow Cells; D002454:Cell Differentiation; D002470:Cell Survival; D002648:Child; D002675:Child, Preschool; D003182:Complement C5 / Q000276:immunology; D064420:Drug-Related Side Effects and Adverse Reactions; D006412:Hematopoietic Stem Cells / Q000502:physiology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007239:Infections / Q000150:complications; D007958:Leukocyte Count; D008214:Lymphocytes; D009503:Neutropenia / Q000209:etiology* / Q000503:physiopathology; D009504:Neutrophils / Q000166:cytology; D010641:Phenotype
chemical_list: D003182:Complement C5