title: Mid-portion agenesis of corpus callosum in a presumed Baller-Gerold syndrome.
abstract: We report an association of trigonocephaly and thumb hypoplasia in a 6.5-year-old boy, diagnosed as Baller-Gerold syndrome. In addition to craniosynostosis and radial limb defect, which are constant in this syndrome, our patient presents two unusual features: the first is an epidermal nevus and the second is an agenesis of the middle portion of corpus callosum. This unique type of callosal agenesis in the context of a polymalformative disorder supports the hypothesis that partial agenesis of corpus callosum may be due to an event occurring before the 12th week gestation with continued development of the midline structures.
authors.affiliation: Department of Neurology (Pediatric Neurology), Hôpital Erasme, Université Libre de Bruxelles, Belgium.
authors.forename: A
authors.initials: A
authors.lastname: Dunac
authors.forename: P
authors.initials: P
authors.lastname: Van Bogaert
authors.forename: P
authors.initials: P
authors.lastname: David
authors.forename: E F
authors.initials: EF
authors.lastname: Avni
authors.forename: O
authors.initials: O
authors.lastname: Paduart
authors.forename: H B
authors.initials: HB
authors.lastname: Szliwowski
authors.forename: N
authors.initials: N
authors.lastname: Van Regemorter
mesh_terms: D000015:Abnormalities, Multiple / Q000175:diagnosis*; D061085:Agenesis of Corpus Callosum; D002648:Child; D003398:Craniosynostoses / Q000175:diagnosis*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009506:Nevus / Q000175:diagnosis; D012878:Skin Neoplasms / Q000175:diagnosis; D013577:Syndrome; D013933:Thumb / Q000002:abnormalities*