Porencephaly is related to familial porencephaly and brain small vessel disease 2. An important gene associated with Porencephaly is COL4A1 (Collagen Type IV Alpha 1 Chain), and among its related pathways/superpathways are ERK Signaling and Signal Transduction. The drug Thrombin has been mentioned in the context of this disorder. Affiliated tissues include brain and temporal lobe, and related phenotypes are spasticity and abnormality of movement