Ceroid Lipofuscinosis, Neuronal, 9, also known as neuronal ceroid lipofuscinosis 9, is related to ceroid lipofuscinosis, neuronal, 3 and neuronal ceroid lipofuscinosis, and has symptoms including ataxia, muscle rigidity and seizures. An important gene associated with Ceroid Lipofuscinosis, Neuronal, 9 is TPP1 (Tripeptidyl Peptidase 1). Affiliated tissues include eye, and related phenotypes are intellectual disability and seizure