PT - JOURNAL ARTICLE AU - Xing Ji AU - Fang Chen AU - Yafeng Zhou AU - Jia Li AU - Yuying Yuan AU - Yu Mo AU - Qiang Liu AU - Jen-Yu Tseng AU - Diego Shih-Chieh Lin AU - Shu-Huei Shen AU - Yu Liu AU - Weiping Ye AU - Hongyun Zhang AU - Na Liu AU - Li Shen AU - Xin Jin AU - Pi-Lin Sung AU - Mao Mao TI - Incidental identification of maternal malignancies in two Asian women underwent noninvasive prenatal test AID - 10.1101/095364 DP - 2016 Jan 01 TA - bioRxiv PG - 095364 4099 - http://biorxiv.org/content/early/2016/12/19/095364.short 4100 - http://biorxiv.org/content/early/2016/12/19/095364.full AB - Noninvasive prenatal test (NIPT) has been widely used as a screening test for trisomy 13, 18 and 21 worldwide. Recently, coexistence of maternal malignancy and pregnancy has drawn increasing attention in NIPT studies. Malignancy in pregnant women potentially affected NIPT results, which may cause false positive results or failed tests. However, no such case has ever been reported in Asian population. In this study, for the first time, we reported a stage III dysgerminoma and advanced gastric cancer during pregnancy accidentally identified during NIPT tests. These two women showed aberrant chromosome aneuploidies in NIPT results and concordant pattern of genome disruption found in tumor samples. The findings in this study further validate the effect of maternal malignancy on NIPT results and strengthen the possibility of detecting malignant tumors through NIPT in the future.