Learning From a Missed Diagnosis: Complete Agenesis of the Corpus Callosum With Benign Hydrocephalus.

In agenesis of the corpus callosum, ventriculomegaly without evidence of cerebrospinal fluid obstruction often requires no surgical intervention. Regular follow-up every 3-6 months, then annually, is essential to monitor for signs of raised intracranial pressure or neurological decline-prompting advanced imaging and consideration of surgical management if deterioration occurs.