AIIMS November 2011 – MCQ 23

Which of the following is not associated with a defect in neural migration?
A. Lissencephaly
B. Schizencephaly
C. Polymicrogyria
D. Focal cortical brain maldevelopment

Correct answer : D. Focal cortical brain maldevelopment

The structural abnormalities found in Neuronal Migration Disorderss (NMD) include schizencephaly, porencephaly, lissencephaly, agyria, macrogyria, polymicrogyria, pachygyria, microgyria, micropolygyria, neuronal heterotopias (including band heterotopia), agenesis of the corpus callosum, and agenesis of the cranial nerves.

Ref: National Institute of Neurological Diseases and Stroke – Neuronal Migration Disorders Information Page (www.ninds.nih.gov/disorders/neuronal_migration/neuronal_migration.htm)

PG Blazer is aimed at helping undergraduate medical students in acquiring more knowledge and increasing their chance of getting admission to postgraduate courses by performing well in the post graduate medical entrance examinations. Students are requested verify the accuracy of information in standard text books. This site is not meant for any medical advice or treatment. Please contact your physician for medical advice and treatment.

Related Posts