Colpocephaly: a case report.

Colpocephaly is an abnormal enlargement of the occipital horn of the lateral ventricle, also described as persistence of the fetal configuration of the lateral ventricles. Since it was first described, colpocephaly has been found in association with several abnormalities of the brain. Various etiologies have been postulated, including intrauterine/perinatal injuries, genetic disorders, and an error of morphogenesis. We report a new case of colpocephaly associated with absence of the corpus callosum and review the literature.