title: [Transient myeloproliferative syndrome or congenital leukemia in a newborn infant with Down syndrome?].
abstract: A newborn with Down syndrome (karyotype 47 xy + 21) was observed in whom a transient myeloproliferative reaction occurred, perhaps connected with perinatal infection. The reaction regressed spontaneously. However, the possibility of complete remission cannot be excluded since the proliferative changes may be a preliminary stage of leukaemia.
authors.forename: W
authors.initials: W
authors.lastname: Maszkiewicz
authors.forename: B
authors.initials: B
authors.lastname: Zarczynska
authors.forename: J
authors.initials: J
authors.lastname: Koralewska
mesh_terms: D003937:Diagnosis, Differential; D004314:Down Syndrome / Q000150:complications*; D006801:Humans; D007231:Infant, Newborn; D007938:Leukemia / Q000151:congenital*; D008297:Male; D009196:Myeloproliferative Disorders / Q000151:congenital*; D012075:Remission, Spontaneous
vernacular_title: Przejściowy zespół mieloproliferacyjny czy białaczka wrodzona u noworodka z zespołem Downa?