Masa Syndrome, also known as l1 syndrome, is related to spastic paraplegia 3, autosomal dominant and spastic paraparesis, and has symptoms including muscle spasticity An important gene associated with Masa Syndrome is L1CAM (L1 Cell Adhesion Molecule), and among its related pathways/superpathways is Interaction between L1 and Ankyrins. The drug Anesthetics has been mentioned in the context of this disorder. Affiliated tissues include brain and spinal cord, and related phenotypes are intellectual disability and spasticity