PMID- 29793366 OWN - NLM STAT- MEDLINE DCOM- 20200807 LR - 20200807 IS - 1476-4954 (Electronic) IS - 1476-4954 (Linking) VI - 32 IP - 24 DP - 2019 Dec TI - Noninvasive prenatal testing (NIPT) detects variant of Turner syndrome not detectable by fluorescent in situ hybridization. PG - 4177-4180 LID - 10.1080/14767058.2018.1481383 [doi] AB - Introduction: Noninvasive prenatal testing (NIPT) is a reliable screening method for fetal aneuploidy detection of trisomy 18, 13, 21 along with few sex chromosome abnormalities monosomy X, XXX, XXY (Klinefelter), XYY (Jacob) syndromes and certain microdeletions which include cri-du-chat, DiGeorge, 1p36, Angelman, and Prader-Willi syndromes in comparison to the available screening methods. Prenatal screening of Turners syndrome is possible by ultrasound in certain conditions only. Recently benefits of early detection and treatment of Turners syndrome has been emphasized, enforcing on accurate and early screening prenatally.Case details: The current case emphasizes on the reliability of NIPT testing which comes with an advantage of early screening. A 24-year-old primi gravida was referred for NIPT as she tested for high risk on biochemical screening. The Panorama NIPT results showed low risk for trisomies, 21, 18, and 13 but high risk of monosomy X and was advised confirmatory amniocentesis. The fluorescence in situ hybridization (FISH) report revealed no numerical abnormality detected for any of the five chromosomes tested. On receiving this discordant report, the sample was rerun for NIPT, to rule out any laboratory-related issues. The result obtained on a rerun was consistent with the first report and showed monosomy X again. The karyotype report was available three weeks later and a rare variant of Turners syndrome was identified.Discussion: Panorama NIPT considers single nucleotide polymorphisms spread across the chromosomes for analysis, different variants of aneuploidy can be picked up in comparison to FISH, similar to the current case wherein it could not as it was a centromeric probe. Reported first case of X chromosome variant detected by NIPT confirmed by karyotyping, missed by FISH. FAU - Eswarachari, Venkataswamy AU - Eswarachari V AD - Medgenome Labs Ltd., Narayana Nethralaya, Bangalore, India. FAU - Kadam, Priya AU - Kadam P AD - Medgenome Labs Ltd., Narayana Nethralaya, Bangalore, India. FAU - Movva, Sireesha AU - Movva S AUID- ORCID: 0000-0003-1081-6954 AD - Medgenome Labs Ltd., Narayana Nethralaya, Bangalore, India. FAU - Lingaiah, Shruthi AU - Lingaiah S AD - Medgenome Labs Ltd., Narayana Nethralaya, Bangalore, India. FAU - Akther, Riyaz M AU - Akther RM AD - Medgenome Labs Ltd., Narayana Nethralaya, Bangalore, India. FAU - Kidangan, Franics X AU - Kidangan FX AD - Medgenome Labs Ltd., Narayana Nethralaya, Bangalore, India. FAU - Gowda, Kiran C AU - Gowda KC AD - Medgenome Labs Ltd., Narayana Nethralaya, Bangalore, India. FAU - Golakoti, Rudra R K AU - Golakoti RRK AD - Medgenome Labs Ltd., Narayana Nethralaya, Bangalore, India. FAU - Lall, Meena AU - Lall M AD - Institute of Medical Genetics and Genomics, Sir Ganga Ram Hospital, New Delhi, India. FAU - Mahajan, Surbhi AU - Mahajan S AD - Institute of Medical Genetics and Genomics, Sir Ganga Ram Hospital, New Delhi, India. FAU - Saviour, Pushpa AU - Saviour P AD - Institute of Medical Genetics and Genomics, Sir Ganga Ram Hospital, New Delhi, India. FAU - Puri, Ratna AU - Puri R AD - Institute of Medical Genetics and Genomics, Sir Ganga Ram Hospital, New Delhi, India. FAU - Verma, Ishwar C AU - Verma IC AD - Institute of Medical Genetics and Genomics, Sir Ganga Ram Hospital, New Delhi, India. FAU - Vedam, Ramprasad L AU - Vedam RL AD - Medgenome Labs Ltd., Narayana Nethralaya, Bangalore, India. LA - eng PT - Case Reports PT - Journal Article DEP - 20180613 PL - England TA - J Matern Fetal Neonatal Med JT - The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians JID - 101136916 SB - IM MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence MH - Karyotype MH - *Noninvasive Prenatal Testing MH - Pregnancy MH - Turner Syndrome/*diagnosis MH - Young Adult OTO - NOTNLM OT - Noninvasive prenatal testings OT - report OT - screenings EDAT- 2018/05/26 06:00 MHDA- 2020/08/08 06:00 CRDT- 2018/05/26 06:00 PHST- 2018/05/26 06:00 [pubmed] PHST- 2020/08/08 06:00 [medline] PHST- 2018/05/26 06:00 [entrez] AID - 10.1080/14767058.2018.1481383 [doi] PST - ppublish SO - J Matern Fetal Neonatal Med. 2019 Dec;32(24):4177-4180. doi: 10.1080/14767058.2018.1481383. Epub 2018 Jun 13.