Child's Nervous System

, Volume 35, Issue 5, pp 883–887 | Cite as

A case of focal cortical dysplasia type Ib atypically showing reversible intensity changes on magnetic resonance imaging which could be affected by epileptic discharge activity

  • Naoto Kuroda
  • Ayataka FujimotoEmail author
  • Hideo Enoki
  • Yoshifumi Arai
  • Tohru Okanishi
Case Report


Focal cortical dysplasia (FCD) was first described as a distinct neuropathological entity in 1971 by Taylor and colleagues. FCD is thought to be an embryological migration disorder and is thus considered a non-progressive, unchangeable disease throughout life. A 9-year-old right-handed boy was referred from a local hospital for medically intractable epileptic seizures. Serial magnetic resonance images (MRI) showed intensity changes that indicated exacerbation and remission. After presurgical evaluations including intracranial video-electroencephalogram monitoring, we performed a lesionectomy aided by MRI and epileptic focus resection. He has been free from seizures for more than 3 years. Neuropathological findings showed FCD type Ib. We surgically treated a patient with FCD, which showed MRI intensity changes indicating exacerbation and remission. Although FCD type Ib is generally invisible on MRI, in this patient, changes in intensity on MRI made FCD type Ib visible.


Focal cortical dysplasia MRI intensity change FCD type Ib MRI visibility Histopathological change 


Compliance with ethical standards

Written informed consent for publication of case details was obtained from the patient’s parents. This study was approved by the ethics committee at the Seirei Hamamatsu General Hospital.

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of NeurosurgerySeirei Hamamatsu General HospitalHamamatsuJapan
  2. 2.Comprehensive Epilepsy CenterSeirei Hamamatsu General HospitalHamamatsuJapan
  3. 3.Department of PathologySeirei Hamamatsu General HospitalHamamatsuJapan

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