Five cases of fetal dysmorphology were examined with high-resolution sonography and magnetic resonance imaging (MRI). Postpartum confirmation was available in all cases. The high contrast resolution of MRI resulted in clear depiction of the abnormalities, particularly dilated fluid-filled structures, whereas the real-time capability and spatial resolution of sonography permitted better appreciation of anatomic detail. While sonography will remain the primary imaging method for pregnancy, MRI appears to be a promising complementary technique in difficult cases.