Familial Alobar Holoprosencephaly

📋Overview

This condition occurs during early gestation when the prosencephalon fails to separate, resulting in a single central ventricle and fused cerebral structures. As a significant structural variation within the holoprosencephaly spectrum, it involves a complete lack of midline division in the brain.

The familial classification indicates a hereditary pattern, often associated with genetic mutations that interfere with the establishment of the brain's midline. These neurological disruptions can also influence the formation of midline facial features during embryonic development.