Can The Corpus Callosum Develop After 20 Weeks?

Can The Corpus Callosum Develop After 20 Weeks? BACKGROUND. The corpus callosum (CC) is the largest commissural pathway connecting the two cerebral hemispheres. It develops relatively late during cerebral ontogenesis, not assuming its definitive shape until 20 weeks of gestation, and continues to grow well after delivery1. Can the corpus callosum grow after 20 weeks?