Page 9 - SONO 260 The Fetal Head and Brain
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The Corpus Callosum
¢The corpus callosum forms late in gestation but should be completely intact between 18 and 20 weeks.
The corpus callosum connects the two lobes of the cerebrum.
The corpus callosum consists of four parts. Fetal development of
the corpus callosum is from anterior to posterior.
Thus, the rostrum, genu, body, and splenium develop, respectively.
The sonographic appearance of the corpus callosum is that of an echogenic band of tissue within the midline of the brain connecting the two cerebral hemispheres.
