Fetal cystic hygroma is characterized by single or multiple congenital cysts of the lymphatic system. Failure to establish venous drainage beginning around 40th day of gestation results in dilated disorganized lymph channels present as cystic hygromas. As a result lymphatic dilatation, lymphedema, single or multiloculated cystic hygromas are formed.
A 30 year-old primigravid mother admitted for routine control of pregnancy and at ultrasonographic examination was found to have 90 mm diametered cystic lesion resembling cystic hygroma. Chromosomal analysis on cordosenthesis revealed 45XO karyotype. At 20th week of gestation pregnancy was terminated with parents’ consent. Here we presented the case to discuss cystic hygroma and Turner Syndrome association and autopsy findings of our case.