Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Leukoencephalopathy with brain stem and spinal cord involvement and lactate elevation ?
    ### Response:
    What are the signs and symptoms of Leukoencephalopathy with brain stem and spinal cord involvement and lactate elevation ? The Human Phenotype Ontology provides the following list of signs and symptoms for Leukoencephalopathy with brain stem and spinal cord involvement and lactate elevation .
    