[Retrocervical cystic hygroma: about 35 cases]. / Hygroma kystique du cou: à propos de 35 cas.

Retrocervical cystic hygroma is a congenital defect associated to chromosomic anomalies. We report a retrospective study about 35 cystic hygroma autopsies colliged in C.M.N.T in 10 years. Antenatal sonography has a sensibility 94.5%. Genetic abnormalities dominated by trisomie 13 Turner syndrome dad found in 11.5%. Medical abortion has done in 48.5%. A multidisciplinary management autorized to understand etiopathogeny of this defect.