Familial Porencephaly, also known as autosomal dominant porencephaly type 1, is related to porencephaly and spastic hemiplegia, and has symptoms including hemiplegia, muscle spasticity and seizures. An important gene associated with Familial Porencephaly is COL4A1 (Collagen Type IV Alpha 1 Chain), and among its related pathways/superpathways are PI3K-Akt signaling pathway and Signaling by Receptor Tyrosine Kinases. Affiliated tissues include brain.