title: Chiari I malformation associated with callosal dysgenesis and ectopic neurohypophysis.
abstract: In patients with Chiari I malformation there usually is no anomaly of the supratentorial structures. In this communication we report a patient with Chiari I malformation, callosal dysgenesis, and an ectopic neurohypophysis. Both the splenium and the rostrum of the corpus callosum were hypoplastic, suggesting an intrinsic error which operated around 20 weeks of gestation. This may provide a clue for the time of onset of Chiari I malformation.
authors.affiliation: Department of Radiology, Ege University Hospital, Bornova, Izmir, Turkey.
authors.forename: R N
authors.initials: RN
authors.lastname: Sener
mesh_terms: D061085:Agenesis of Corpus Callosum; D001139:Arnold-Chiari Malformation / Q000145:classification / Q000150:complications* / Q000473:pathology; D002648:Child; D002828:Choristoma / Q000150:complications*; D004677:Encephalocele / Q000150:complications; D005402:Fistula / Q000150:complications; D006801:Humans; D007027:Hypothalamic Diseases / Q000150:complications; D008297:Male; D008473:Median Eminence / Q000473:pathology*; D010904:Pituitary Gland, Posterior / Q000473:pathology*; D013118:Spinal Cord Diseases / Q000150:complications