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Familial lissencephaly with cleft palate and severe cerebellar hypoplasia

✍ Scribed by Kerner, Berit; Graham, John M.; Golden, Jeffrey A.; Pepkowitz, Samuel H.; Dobyns, William B.

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 24 KB
Volume: 87
Category: Article
ISSN: 0148-7299
DOI: 10.1002/(sici)1096-8628(19991222)87:5<440::aid-ajmg14>3.0.co;2-#

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✦ Synopsis

Lissencephaly is a brain malformation characterized by absence of gyral formation, resulting in a smooth brain surface. Histologic study shows severe anomalies of cerebral cortical development. Several lissencephaly syndromes have been described. Here we report a familial syndrome of lissencephaly, cleft palate, diffuse agyria, and severe cerebellar hypoplasia. Microscopic examination of the abnormally thick cerebral cortex showed absence of cortical layering, with preservation of the pia-glial barrier. This is the first report of recurrent lissencephaly with cleft palate and severe cerebellar hypoplasia in which these unique neuropathology findings are described. Autosomal recessive inheritance is suggested by recurrence in sibs within the same family, but germ cell mosaicism for a dominant mutation is not excluded. Am.

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