Heparan sulfate excretion in urine, Hepatomegaly, Hirsutism, Hyperactivity, Hyporeflexia, Intellectual disability, Joint stiffness, Ovoid thoracolumbar vertebrae, Paresthesia, Peripheral neuropathy, Progressive neurologic deterioration, Recurrent upper respiratory tract infections, Seizure, Sensory ataxia, Sleep disturbance, Splenomegaly, Synophrys, Thickened ribs

abnormal crista ampullaris morphology, abnormal diencephalon morphology, abnormal eye electrophysiology, abnormal hepatocyte morphology, abnormal locomotor behavior, abnormal lysosome morphology, abnormal middle ear ossicle morphology, abnormal organ of Corti morphology, abnormal podocyte morphology, abnormal pons morphology, abnormal renal tubule epithelium morphology, abnormal retina pigment epithelium morphology, abnormal rod electrophysiology, abnormal sclera morphology, abnormal spiral ligament morphology, abnormal spiral limbus morphology, abnormal suprachiasmatic nucleus morphology, conductive hearing loss, decreased Purkinje cell number, decreased cochlear hair cell number, decreased fear-related response, delayed circadian behavior phase, disheveled coat, increased anxiety-related response, increased or absent threshold for auditory brainstem response, increased susceptibility to otitis media, organ of Corti degeneration, premature death, short photoreceptor outer segment, thin retina outer nuclear layer