Striatonigral Degeneration, Infantile, also known as infantile bilateral striatal necrosis, is related to familial infantile bilateral striatal necrosis and sporadic infantile bilateral striatal necrosis, and has symptoms including muscle spasticity An important gene associated with Striatonigral Degeneration, Infantile is NUP62 (Nucleoporin 62). Affiliated tissues include globus pallidus and caudate nucleus, and related phenotypes are intellectual disability and spasticity