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PET, CT, and MRI Imaging of Neuronal Migration Anomalies in Epileptic Patients

Published online by Cambridge University Press:  18 September 2015

John Falconer*
Affiliation:
Division of Neurosciences, Health Sciences Center Hospital, University of British Columbia, Vancouver
Juhn A. Wada
Affiliation:
Division of Neurosciences, Health Sciences Center Hospital, University of British Columbia, Vancouver
Wayne Martin
Affiliation:
Division of Neurology, Health Sciences Center Hospital, University of British Columbia, Vancouver
David Li
Affiliation:
Department of Radiology, Health Sciences Center Hospital, University of British Columbia, Vancouver
*
10510 - Hollymount Drive, Richmond, British Columbia, Canada V7E 4Z2
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Abstract:

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During the investigation of intractable epilepsy, neuronal migration anomalies [NMA] were discovered in three patients. The first patient had abnormally positioned gray matter within the walls of both lateral ventricles. The second patient had a post operative cystic area in the right parietal-occipital lobes and an area of NMA within the right temporal lobe. The third patient had abnormally thickened gray matter in the right operculum. Long term CCTV-EEG monitoring of these three patients revealed ictal discharges originating from the area of abnormal gray matter in patients 2 and 3. PET scanning showed the areas of NMA in all three patients to have similar metabolic activity to normal gray matter. These cases illustrate the value of various imaging modalities and suggest some interesting physiology of a spectrum of neuronal migration anomalies.

Type
Original Articles
Copyright
Copyright © Canadian Neurological Sciences Federation 1990

References

REFERENCES

1.Lemire, RJ, Loeser, JD, Leech, RW, et al. Normal and abnormal development of the human nervous system. Hagerstown: Harper & Row 1975.Google Scholar
2.Barkovich, AJ, Chuang, SH, Norman, D. MR of neuronal migration anomalies. Am J Neuroradiol 1987; 8: 10091017.Google Scholar
3.Barkovich, AJ, Norman, D. MR imaging in schizencephaly. Am J Neuroradiol 1988; 9: 297302.Google Scholar
4.Layton, DD. Heterotopic cerebral gray matter as an epileptogenic focus. J Neuropathol 1962; 1(21): 244249.CrossRefGoogle Scholar
5.Panych, LP, Wada, JA, Beddoes, MP. Automation of the seizure investigation unit at the University of British Columbia Health Sciences Centre Hospital. Electroenceph Clin Neurophysiol 1985; 61(6): 588591.CrossRefGoogle ScholarPubMed
6.Tungel, C. Ein Fall von Neubildung graner Hirnsubstanz. Archie Path Anat 1859; 16: 166.CrossRefGoogle Scholar
7.Layton, DD. Heterotopic cerebral gray matter as an epileptogenic focus. J Neuropathol 1962; 1(21): 244249.CrossRefGoogle Scholar
8.Bergeron, RT. Pneumographic demonstration of subependymal heterotopic cortical gray matter in children. Am J Roentgenol Radium Ther Nucl Med 1967; 101: 168177.CrossRefGoogle ScholarPubMed
9.Mueller, CF. Heterotopic Gray Matter. Radiology 1970; 94: 357358.CrossRefGoogle ScholarPubMed
10.Mikhael, MA, Mattar, AG. Malformation of the cerebral cortex with heterotopia of the gray matter. J Comput Assist Tomgr 1978; 2: 291296.CrossRefGoogle ScholarPubMed
11.Zimmerman, RA, Bilaniuk, LT, Grossman, Rl. Computed tomography in migratory disorders of human development. Neuroradiology 1983;25:257263.CrossRefGoogle Scholar
12.Deeb, ZL, Rothfus, WE. Maroon, JC. MR imaging of heterotopic gray matter. J Comput Assist Tomgr 1985; 9(6): 11401141.Google ScholarPubMed
13.Dunn, V, Mock, T, Bell, WE, et al. Detection of heterotopic gray matter in children by magnetic resonance imaging. Magnetic Resonance Imaging 1986; 4: 3339.CrossRefGoogle ScholarPubMed
14.Hayden, SA, Davis, KA, Stears, JC, et al. MR imaging of heterotopic gray matter. J Comput Assist Tomogr 1987; 11(5): 878879.CrossRefGoogle ScholarPubMed
15.Ishikawa, A, Fukushima, N, Wagatsuma, Y, et al. Magnetic resonance imaging of heterotopic gray matter. Brain and Development 1987; 9(1): 6061.CrossRefGoogle ScholarPubMed
16.Barkovich, AJ, Chuang, SH, Norman, D. MR of neuronal migration anomalies. Am J Neuroradiol 1987; 8: 10091017.Google Scholar
17.Bairamian, D, Di Chiro, G, Theodore, WH, et al. MR Imaging and Positron Emission Tomography of Cortical Heterotopia. J Comp Assist Tomgr 1985; 9(6): 11371139.CrossRefGoogle ScholarPubMed
18.Dvorak, K, Feit, J. Migration of neuroblasts through partial necrosis of the cerebral cortex in newborn rats — contribution to the problems of morphological development and developmental period of cerebral microgyria. Acta Neuropathol (Berl) 1977; 38: 203212.Google Scholar