1. Departments of Genetics, St George's Hospital Medical School, Cranmer Terrace, Tooting, London SW170RE, U.K.;2. Obstetrics and Gynaecology, St George's Hospital Medical School, Cranmer Terrace, Tooting, London SW170RE, U.K.
Abstract:
The first prenatal diagnosis of Pallister-Killian syndrome by chorionic villus sampling is presented. Fetal hydrops was noted on ultrasound in early pregnancy, and the karyotype revealed isochromosome 12p mosaicism.