The relationship between external bony defects and widened lateral interorbital distance in frontoethmoidal encephalomeningocele.

Purpose: The aim of this study was to identify the prevalence of the abnormal lateral interorbital distance (LIOD), micropthalmia or anopthalmia and incidence of hydrocephalus in frontoethmoidal encephalomeningocele (FEEM), and to identify the correlation between the external bony defects and a widened lateral orbital wall.

Materials And Methods: FEEM patients who were treated in the Faculty of Medicine, Chiang Mai University between January 1, 2006, and December 31, 2016, were retrospectively reviewed from the medical records. We included the patients who had undergone head computed tomography (CT) of the facial bones.