title: Agenesis of corpus callosum: prenatal diagnosis and prognosis.
abstract: BACKGROUND
  Agenesis of corpus callosum (ACC) is commonly diagnosed prenatally. When isolated, it appears to carry a good prognosis but studies are often retrospective and follow-up short. We report a prospective study of 17 children (11 boys, 6 girls) with prenatally diagnosed isolated ACC.
  
  
  METHODS
  Neuropsychological evaluation was performed each year and results at the ages of 2, 4, and 6 years were compared.
  
  
  RESULTS
  Febrile seizures occurred in 3 patients. Median intellectual quotient (IQ) was within the normal range (80-109) and nonrelated to partial or complete ACC, sex, or febrile seizures. Lower median IQ was significantly related to low cultural status. With age, the number of children with IQ in the lower range (80-89) increased and slowness, attentional troubles, and instability appeared.
  
  
  CONCLUSIONS
  This study demonstrates that if outcome of isolated ACC is favorable, a long follow-up is necessary: with age, IQ in the lower range and behavioral troubles are linked to difficulties in school.
authors.affiliation: Services de Neuropédiatrie, Obstétrique, Radiologie, Hôpital Saint Vincent de Paul, 82 Avenue Denfert Rochereau, 75674 Paris Cedex 14, France. marielaure.moutard@svp.ap-hop-paris.fr
authors.forename: Marie-Laure
authors.initials: ML
authors.lastname: Moutard
authors.forename: Virginie
authors.initials: V
authors.lastname: Kieffer
authors.forename: Josué
authors.initials: J
authors.lastname: Feingold
authors.forename: François
authors.initials: F
authors.lastname: Kieffer
authors.forename: Fanny
authors.initials: F
authors.lastname: Lewin
authors.forename: Catherine
authors.initials: C
authors.lastname: Adamsbaum
authors.forename: Antoinette
authors.initials: A
authors.lastname: Gélot
authors.forename: Jaume
authors.initials: J
authors.lastname: Campistol I Plana
authors.forename: Patrick
authors.initials: P
authors.lastname: van Bogaert
authors.forename: Monique
authors.initials: M
authors.lastname: André
authors.forename: Gérard
authors.initials: G
authors.lastname: Ponsot
mesh_terms: D000367:Age Factors; D061085:Agenesis of Corpus Callosum; D000704:Analysis of Variance; D001288:Attention; D002648:Child; D002675:Child, Preschool; D003337:Corpus Callosum / Q000503:physiopathology; D003744:Dental Enamel Hypoplasia; D004569:Electroencephalography; D004827:Epilepsy / Q000175:diagnosis / Q000209:etiology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007360:Intelligence; D007361:Intelligence Tests; D007858:Learning; D008279:Magnetic Resonance Imaging; D008297:Male; D009421:Nervous System Malformations / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology; D009483:Neuropsychological Tests; D011247:Pregnancy; D011296:Prenatal Diagnosis; D011379:Prognosis; D011597:Psychomotor Performance; D012189:Retrospective Studies