The two cases described here were diagnosed with abnormal USG (ultra sonography) findings at the Department of Gynecology and Obstetrics, Faculty of Medicine, Çukurova University, Adana, Turkey. Chromosomal analyses of cord blood, peripheral blood lymphocytes and of amniotic fluid cells were performed according to standard cytogenetic methods using a G-banding technique. Lymphocytes were cultured in RPMI 1640 (Sigma-Aldrich Inc., Munich, Germany). Chromosome slides were made according to routine procedures [11]. Twenty metaphases of each individual were examined for chromosomal aberrations after solid Giemsa staining and were recorded according to the International System for Human Cyto genetic Nomenclature [12]. Chromosomes were photographed, destained, and subseguently GTG-banded (G bands by trypsin using Giemsa) for evaluation. Histopa thologically examined features were described for the two fetuses.