A pregnancy with discordant fetal and placental chromosome 18 aneuploidies revealed by invasive and noninvasive prenatal diagnosis  Chong Chen, David.

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A pregnancy with discordant fetal and placental chromosome 18 aneuploidies revealed by invasive and noninvasive prenatal diagnosis  Chong Chen, David S. Cram, Fanni Xie, Ping Wang, Xueqin Xu, Huanzheng Li, Zhuo Song, Di Chen, Jianguang Zhang, Shaohua Tang  Reproductive BioMedicine Online  Volume 29, Issue 1, Pages 136-139 (July 2014) DOI: 10.1016/j.rbmo.2014.03.017 Copyright © 2014 Reproductive Healthcare Ltd. Terms and Conditions

Figure 1 Prenatal diagnosis history. (A) Pregnancy tests results and proposed origin of chromosome 18 abnormalities in fetal and placental tissue; the proposed mechanism for the formation of the 18p− chromosome is by breakage fusion cycles as described by Vanneste et al. (2009); AFP=alpha fetoprotein; D=day; HCG=human chorionic gonadotrophin; ICM=inner cell mass; W=week. (B) NIPT results for chromosome 18 and 18p and 18q regions; z scores >5 and <−5 represent significant gains and losses in chromosome copy number, respectively; black indicates results for 269 normal samples; blue indicates the trisomy 18 sample; red indicates the 18p−18q+sample. Reproductive BioMedicine Online 2014 29, 136-139DOI: (10.1016/j.rbmo.2014.03.017) Copyright © 2014 Reproductive Healthcare Ltd. Terms and Conditions

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