In addition to the clinical signs leading to the
diagnosis, microcephaly, Dandy-Walker malformation, lissencephaly,
polymicrogyria, porencephalic cysts, cortical ectopia and heterotopias,
absent pineal gland, papillomata of the choroid plexus, and ventriculomegaly
have been associated with Aicardi syndrome. Costovertebral defects,
including hemivertebrae, kyphoscoliosis, and rib anomalies (extra, absent,
or fused ribs, and/or other malformations), were present in 39% of
patients. Cleft lip/palate and cavernous hemangioma have been reported.