Spastic Paraplegia 83, Autosomal Recessive, also known as spg83, is related to spastic paraplegia 85, autosomal recessive and spastic paraplegia 80, autosomal dominant. An important gene associated with Spastic Paraplegia 83, Autosomal Recessive is HPDL (4-Hydroxyphenylpyruvate Dioxygenase Like), and among its related pathways/superpathways are Budding and maturation of HIV virion and plasmalogen biosynthesis. Related phenotypes are spastic paraplegia and unsteady gait