Malformations of cortical development (MCD): imaging features

Written and reviewed by Dr Ibrahim Imam, Consultant Neurologist. Last reviewed .

Malformations of cortical development (MCD): imaging features. Ipsilateral focal cortical thickening. Fully referenced neurology checklist.

Focal cortical dysplasia features

  • Ipsilateral focal cortical thickening
  • Radial hyperintense bands

Hippocampal features

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Transmantle band sign

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Other features

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References

  1. Abdel Razek AA, Kandell AY, Elsorogy LG, Elmongy A, Basett AA. Disorders of cortical formation: MR imaging features. Am J Neuroradiol 2009; 30:4-11.
  2. Osborn RE, Byrd SE, Naidich TP, Bohan TP, Friedman H. MR imaging of neuronal migrational disorders. Am J Neuroradiol 1988; 9:1101-1106.
  3. Kuchukhidze G, Koppelstaetter F, Unterberger I, et al. Hippocampal abnormalities in malformations of cortical development: MRI study. Neurology 2010; 74:1575-1582.
  4. Wang DD, Deans AE, Barkovich AJ, et al. Transmantle sign in focal cortical dysplasia: a unique radiological entity with excellent prognosis for seizure control. J Neurosurg 2013; 118:337-344.
  5. Hainc N, Alcaide-Leon P, Willinsky RA, Krings T, Nicholson P. Periventricular nodular heterotopia associated with a "transmantle band sign" in patients with epilepsy. Epilepsia 2023; 64:1605-1611.

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