title: Hyperleukocytosis from arsenic trioxide.
abstract: We report the case of a 14-year-old male treated with arsenic trioxide for recurrent acute promyelocytic leukemia. He developed hyperleukocytosis (WBC 111.6 x 10(9)/L) which then resolved while continuing daily arsenic. Hyperleukocytosis without other complications may not be an indication for adding cytotoxic therapy or steroids, nor for discontinuing arsenic trioxide therapy in children.
authors.affiliation: Department of Pediatrics, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.
authors.forename: Michael
authors.initials: M
authors.lastname: Levy
authors.forename: Marcia M
authors.initials: MM
authors.lastname: Wofford
authors.forename: Bayard L
authors.initials: BL
authors.lastname: Powell
authors.forename: Thomas W
authors.initials: TW
authors.lastname: McLean
mesh_terms: D000293:Adolescent; D000970:Antineoplastic Agents / Q000009:adverse effects* / Q000627:therapeutic use; D000077237:Arsenic Trioxide; D001152:Arsenicals / Q000009:adverse effects* / Q000627:therapeutic use; D006801:Humans; D015473:Leukemia, Promyelocytic, Acute / Q000188:drug therapy*; D007964:Leukocytosis / Q000139:chemically induced*; D008297:Male; D010087:Oxides / Q000009:adverse effects* / Q000627:therapeutic use; D012008:Recurrence
chemical_list: D000970:Antineoplastic Agents; D001152:Arsenicals; D010087:Oxides; D000077237:Arsenic Trioxide