title: CD34-positive blastoma in a patient with idiopathic myelofibrosis.
abstract: We report CD34-positive "blastoma" which developed in a patient with idiopathic myelofibrosis (IMF). A 48-year-old woman was diagnosed as having essential thrombocythemia, then the disease had transformed into IMF 41 months later. Finally, a subcutaneous tumor, composed of blastic cells positive for CD34 but negative for lineage-specific antigens, developed without any evidence of systemic leukemia transformation.
authors.affiliation: Division of Hematology, University of Tsukuba.
authors.forename: T
authors.initials: T
authors.lastname: Komeno
authors.forename: H
authors.initials: H
authors.lastname: Ninomiya
authors.forename: T
authors.initials: T
authors.lastname: Itoh
authors.forename: Y
authors.initials: Y
authors.lastname: Hasegawa
authors.forename: T
authors.initials: T
authors.lastname: Kobayashi
authors.forename: N
authors.initials: N
authors.lastname: Mori
authors.forename: T
authors.initials: T
authors.lastname: Nagasawa
authors.forename: T
authors.initials: T
authors.lastname: Abe
mesh_terms: D018952:Antigens, CD34 / Q000032:analysis*; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D007951:Leukemia, Myeloid / Q000175:diagnosis / Q000209:etiology* / Q000276:immunology; D008479:Mediastinal Neoplasms / Q000175:diagnosis / Q000209:etiology* / Q000276:immunology; D008875:Middle Aged; D055728:Primary Myelofibrosis / Q000150:complications*; D013922:Thrombocytosis / Q000150:complications
chemical_list: D018952:Antigens, CD34