[Sonographic detection of hygroma colli in the fetus].

Foetal cystic hygroma is a congenital malformation of the lymphatic systems. Ten cases of foetal cystic hygroma were diagnosed prenatally during the second trimester, in a period of two years, at Ultrasound Unit of the Department of Obstetrics and Gynaecology of the University of Mainz, West Germany. Six foetuses had Turner's syndrome, one had a 47 X + 21 karyotype, two foetuses were cytogenetically normal and in one case tue chromosome cultures failed. Sonographic findings are demonstrated and compared to autopsy results. In addition, clinical management of foetuses with cystic hygroma are discussed.