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Genetic and Rare Diseases Information Center (GARD)


Other names people use for this condition
  • Perisylvian syndrome
  • Polymicrogyria, bilateral perisylvian
  • Congenital bilateral perisylvian syndrome
  • CBPS
  • Perisylvian syndrome, congenital bilateral
  • PMGX



Bilateral perisylvian polymicrogyria
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Bilateral perisylvian polymicrogyria (BPP) is a rare neurological disorder that may be apparent at birth, infancy, or later during childhood. It is characterized mainly by partial paralysis of muscles on both sides of the face, tongue, jaws, and throat; difficulties in speaking, chewing, and swallowing (dysphagia); and/or seizures (epilepsy). In most cases, mild to severe intellectual disability is also present. BPP is thought to be due to improper development of the outer surface of the brain (cerebral cortex) during embryonic growth. In most cases, it appears to occur randomly for unknown reasons (sporadically); however, a few familial cases have been reported. Treatment usually focuses on the specific symptoms that are present in each individual and may include anticonvulsant drugs to help prevent, reduce, or control epilepsy associated with the condition.[1]


References
  1. Perisylvian Syndrome, Congenital Bilateral. NORD. December 31, 2010 Available at: http://www.rarediseases.org/search/rdbdetail_abstract.html?disname=Perisylvian%20Syndrome%2C%20Congenital%20Bilateral. Accessed May 6, 2011.
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