t(6;9)(p23;q34) Presenting Acute Myeloid Leukemia in a Child With an Unsuspected 45,X/46,X,derY [?t(Yp;Yq)] Chromosomal Constitution: Yet Another Y Chromosome Overdosage and Malignancy AssociationOgur, Gönül MD; Duru, Feride MD; Ozyurek, Emel MD; Fisgin, Tunc MDJournal of Pediatric Hematology/Oncology: August 2012 - Volume 34 - Issue 6 - p e237–e240 doi: 10.1097/MPH.0b013e318238866f Online Articles: Clinical and Laboratory Observations Abstract Author Information Development of leukemia in patients with sexual chromosome abnormalities is relatively rare and mostly involves cases of monosomy X, Turner syndrome. Here, we report on a child having a 45,X/46,X,derY [?t(Yp;Yq)] chromosomal constitution (variant Turner syndrome) presenting with concordant acute myeloid leukemia and a rarely seen clonal neoplasic cell lineage-related karyotype, t(6;9)(p23;q34). *Department of Pediatric Genetics, Ondokuz Mayis University Medical Faculty †Department of Pediatric Hematology, Ondokuz Mayis University Medical Faculty, Samsun, Turkey The authors declare no conflict of interest. Reprints: Gönül Ogur, MD, Department of Pediatric Genetics, Ondokuz Mayis University Medical Faculty, Kurupelit, 55139 Samsun, Turkey (e-mail: firstname.lastname@example.org). Received April 11, 2011 Accepted September 19, 2011 Copyright © 2012 Wolters Kluwer Health, Inc. All rights reserved.