False negative findings at third trimester chorionic villus sampling (C.V.S.)
- 28 June 2008
- journal article
- case report
- Published by Wiley in Clinical Genetics
- Vol. 34 (3) , 204-205
- https://doi.org/10.1111/j.1399-0004.1988.tb02864.x
Abstract
A discrepancy is reported between the karyotypes of chorionic cells (direct method):46,XX and of cultured amniotic fluid cells: 47,XX, + 18 in a pregnancy of 30 weeks. A stillborn girl, with external signs of trisomy 18 syndrome, was subsequently shown to have a mosaic pattern in both the lymphocytes and the placenta.Keywords
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