Meckel syndrome is an autosomal recessive inherited disease characterized by occipital encephalocele, postaxial polydactyly, cystic renal dysplasia and ductal plate malformation of the liver. In our case, the pregnancy was terminated, after the fetus demonstrated the evidence of cystic renal dysplasia, occipital encephalocele and oligohydroamnios, in the sonographical evaluation at the 23rd gestational week. Pathologic examination revealed that the fetus has ductal plate malformation of the liver, cerebellar agenesis and hypoplasia of the urinary bladder in additon to ultrasonographic findings. This case, in which the diagnosis was made prenatally by ultrasonographic examination, is presented because of its rarity.