What is Bilateral Perisylvan Polymicrogyria

This is a description of the brain malformation that Evan has. This is what causes all of his issues, sometime during his development inutero he had neuromigration problems and the pmg is what resulted. This description really fits Evan's characteristics but I think his speech is worse, he has more than just a speech impediment, he does not say any words, he is unable to get the message from his brain to his muscles to produce the right position to make sounds.



Bilateral Perisylvian PMG (BPP) Also called Cogenital Bilateral Perisylvan Syndrome
The sylvian fissure is a feature found on either side of a normal brain. In BPP there are areas of polymicrogyria around these fissures. Of all the PMG conditions, this type appears most commonly.
Individuals with BPP may have learning difficulties, cerebral palsy, and seizures. What is more distinctive about this condition is that individuals often have problems using the muscles of the face, throat, jaws and tongue – when this is mild it may lead to just a speech impediment or a tendency to drool but if more severe it can lead to difficulties with feeding as a baby.

This really describes Evan well.