Effects of failed commissuration on the septum pellucidum and fornix: implications for fetal imaging
- 197 Downloads
In the previous article, we considered the normal appearances of the midline stuctures of the brain as they appear on high-resolution magnetic resonance imaging. In this article, we discuss the effects of failed commissuration on the midline structures. We highlight some of the misconceptions of this process that may lead to misdiagnosis of agenesis of the corpus callosum in utero.
KeywordsMagnetic resonance imaging Corpus callosum Septum pelucidum Fornix Failed commissuration
Conflict of interest statement
We declare that we have no conflict of interest.
- 1.Taylor M, David AS (2005) Agenesis of the corpus callosum: a United Kingdom series of 56 cases. J Neurol Neurosurg Psychiatry 25(13):1181–1187Google Scholar
- 3.Rapp B, Perrotin F, Marret H, Sembely-Taveau C, Lansac J, Body G (2002) Value of fetal cerebral MRI for the prenatal diagnosis and prognosis of corpus callosum agenesis. J Gynecol Obstet Biol Reprod (Paris) 2(1):173–182Google Scholar
- 4.Whitby EH, Paley MNJ, Sprigg A, Rutter S, Davies NP, Wilkinson ID, Griffiths PD (2004) Outcome of 100 singleton pregnancies with suspected brain abnormalities diagnosed on ultrasound and investigated by in utero MR imaging. Br J Obs Gynae 111:784–792Google Scholar
- 6.Griffiths PD, Batty R, Reeves M, Connolly DAJ (2009) Imaging the corpus callosum, septum pellucidum and fornix in children: normal anatomy and variations of normality. Neuroradiology (in press).Google Scholar
- 7.Barkovich AJ (1995) Congenital malformations of the brain and skull. In: Barkovich AJ (ed) Pediatric neuroimaging 2nd edition. Raven, New York, pp 177–275Google Scholar
- 9.Raybaud C (2003) Classification of commissural disorders (callosal agenesis and related disorders). Riv Neuroradiologia 16(2):179–182Google Scholar
- 11.Sadler TW (1990) Central Nervous System Chapter 20. In: Sadler TW (ed) Langman's Medical Embryology 6th edition. Williams and Wilkins, Baltimore, p 376Google Scholar