Article Figures & Data
Figures
- fig 1.
Tubulo-nodular type of pericallosal lipoma. In utero and postnatal follow-up images (case 3).
A, Sonogram obtained in utero at 35 weeks' gestation. A biparietal image is shown. A hyperechoic mass (M) can be seen within the anterior midline. The lipoma appears slightly less echogenic than the parietal bone; its margins are irregular. The mass is extending toward the frontal lobes (arrows).
B, MR image obtained at birth. Sagittal view turbo spin-echo T1-weighted image (350/16/1) confirms the presence of the lipoma and the agenesis of the corpus callosum.
C, MR image obtained at birth. Frontal view turbo spin-echo T1-weighted image (350/16/1) shows the lateral extend of the lipoma.
D, MR image obtained at age 3 years. Mid-sagittal view turbo spin-echo T1-weighted sequence (450/15/1) shows the growth of the lipoma.
E, MR image obtained at age 3 years. Similar findings are revealed by the frontal view turbo spin-echo T1-weighted sequence (450/15/1).
- fig 2.
Tubulo-nodular type. Fetal MR images (case 4).
A, Mid-sagittal view turbo spin-echo T1-weighted sequence (400/17/1) shows typical lipoma and incomplete corpus callosum. Note that it was not possible to obtain this sagittal view image by using obstetric sonography.
B, Transverse turbo spin-echo T1-weighted sequence (400/17/1) shows the lipoma and the extension toward the plexus choroids.
- 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.
Tables
TABLE 1:In utero and postpartum data of seven patients with pericallosal lipoma
- TABLE 2:
Specific sonographic characteristics of the pericallosal lipomas
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