Prenatal 3-dimensional imaging techniques in the sonographic evaluation of an oral mass: comparison with postnatal imaging modalities.

Historically, published reports of 3-dimensional (3D) sonographic evaluation of fetal oral masses have been limited to the surface-rendering mode. This report demonstrates the clinical potential of various 3D imaging techniques in the evaluation of fetal epignathus. A comparison is made among the images generated from 3D data sets, postnatal magnetic resonance imaging and computed tomographic scans, and the excised surgical specimen. The diagnostic value and limitations of several 3D imaging techniques in the evaluation of an oral mass are explored.