title: Hemoglobin Wayne Trait with Incidental Polycythemia.
abstract: Hemoglobinopathies, caused by mutations in the globin genes, are one of the most common inherited disorders. Many of the hemoglobin variants can be identified by hemoglobin analysis using conventional electrophoresis and high performance liquid chromatography; however hemoglobin DNA analysis may be necessary in other cases for confirmation. Here, we report a case of a rare alpha chain hemoglobin variant, hemoglobin Wayne, in a 47-year-old man who presented with secondary polycythemia. Capillary zone electrophoresis and high performance liquid chromatography revealed a significant amount of a hemoglobin variant, which was further confirmed by hemoglobin DNA sequencing as hemoglobin Wayne. Since the patient was not homozygous for hemoglobin Wayne, which is associated with secondary polycythemia, the laboratory diagnosis in this case was critical in ruling out hemoglobinopathy as the etiology of his polycythemia.
authors.affiliation: Department of Pathology and Laboratory Medicine, University of Texas Health Science Center-McGovern Medical School, Houston, TX, USA.
authors.forename: Manju
authors.initials: M
authors.lastname: Ambelil
authors.affiliation: Department of Pathology and Laboratory Medicine, University of Texas Health Science Center-McGovern Medical School, Houston, TX, USA.
authors.forename: Nghia
authors.initials: N
authors.lastname: Nguyen
authors.affiliation: Department of Pathology and Laboratory Medicine, University of Texas Health Science Center-McGovern Medical School, Houston, TX, USA.
authors.forename: Amitava
authors.initials: A
authors.lastname: Dasgupta
authors.affiliation: Department of Pathology and Laboratory Medicine, University of Texas Health Science Center-McGovern Medical School, Houston, TX, USA.
authors.forename: Semyon
authors.initials: S
authors.lastname: Risin
authors.affiliation: Department of Pathology and Laboratory Medicine, University of Texas Health Science Center-McGovern Medical School, Houston, TX, USA Md.A.Wahed@uth.tmc.edu.
authors.forename: Amer
authors.initials: A
authors.lastname: Wahed
mesh_terms: D002851:Chromatography, High Pressure Liquid; D019075:Electrophoresis, Capillary; D006455:Hemoglobins, Abnormal / Q000378:metabolism*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011086:Polycythemia / Q000097:blood*
chemical_list: D006455:Hemoglobins, Abnormal; C041280:hemoglobin Wayne
keywords: Hemoglobinopathies; alpha globin chain variant; hemoglobin Wayne