FIG 3. Curvilinear pattern. Sonograms and fetal MR images (case 7).

A, Obstetric sonograms obtained 26.5 weeks. Sagittal view image of the fetal head. The lipoma appears as a hyperechoic mass (arrowheads) with smooth margins parallel to the corpus callosum (arrow).

B, Fetal MR image. Mid-sagittal fast spin-echo T2-weighted sequence (8000/122/2) shows a curvilinear hyposignal lipoma and a normal corpus callosum.