Sonographic findings in otocephaly (synotia).

Otocephaly (synotia) is a rare congenital malformation characterized by a hypoplastic or absent mandible, close-set temporal bones, and abnormal position and development of the auricles. Cyclopia, cranial meningocele or encephalocele, and other abnormalities may be present. 16 High-resolution real-time imaging equipment has allowed detection of a variety of neural tube and facial malformations. To our knowledge, the ultrasound findings in otocephaly have not been previously described. \Ve report the use of ultrasonography in the antenatal diagnosis of otocephaly. Pathologic correlation is provided.