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Guzewicz L, Howell S, Crerand CE, Umbaugh H, Nokoff NJ, Barker J, Davis SM. Clinical phenotype and management of individuals with mosaic monosomy X with Y chromosome material stratified by genital phenotype. Am J Med Genet A 2021; 185:1437-1447. [PMID: 33616298 DOI: 10.1002/ajmg.a.62127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/08/2021] [Accepted: 01/15/2021] [Indexed: 12/27/2022]
Abstract
Individuals mosaic for monosomy X and a cell line with Y chromosome material can have genitalia that appear phenotypical female, male, or ambiguous. Those with this karyotype and typical female genitalia are diagnosed with Turner syndrome; however, this definition specifically excludes those with genitalia other than typical female. There is limited information on whether medical and neurodevelopmental risks are similar among individuals with monosomy X and Y chromosome material across genital phenotypes. This multicenter retrospective study compared comorbidities and clinical management in individuals with monosomy X and Y material and male/ambiguous genitalia to those with typical female genitalia. Electronic medical records for all patients with monosomy X and Y material (n = 76) at two large U.S. pediatric centers were abstracted for predetermined data and outcomes. Logistic regression was used to compare the two phenotypic groups adjusting for site and duration of follow-up. The male/ambiguous genitalia group was just as likely to have congenital heart disease (RR 1.0, 95%CI [0.5-1.9]), autoimmune disease (RR 0.6 [0.2-1.3]), and neurodevelopmental disorders (RR 1.4 [0.8-1.2]) as those with female genitalia. Despite similar risks, they were less likely to receive screening and counseling. In conclusion, individuals with monosomy X and Y chromosome material have similar medical and neurodevelopmental risks relative to individuals with Turner syndrome regardless of genitalia, but there are notable differences in clinical management.
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Affiliation(s)
- Lindsey Guzewicz
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, USA.,Regional Perinatal Center, Upstate Medical University, Syracuse, New York, USA
| | - Susan Howell
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, USA.,eXtraOrdinarY Kids Clinic and Research Program, Children's Hospital Colorado, Aurora, Colorado, USA
| | - Canice E Crerand
- Center for Biobehavioral Health, The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA.,Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Hailey Umbaugh
- Center for Biobehavioral Health, The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Natalie J Nokoff
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, USA.,SOAR Clinic, Children's Hospital Colorado, Aurora, Colorado, USA
| | - Jennifer Barker
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, USA.,eXtraOrdinarY Kids Clinic and Research Program, Children's Hospital Colorado, Aurora, Colorado, USA.,SOAR Clinic, Children's Hospital Colorado, Aurora, Colorado, USA
| | - Shanlee M Davis
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, USA.,eXtraOrdinarY Kids Clinic and Research Program, Children's Hospital Colorado, Aurora, Colorado, USA
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