Question

question 25 (mandatory) (2 points) listen demyelination is the principal pathologic process in all of the following diseases, except: subacute combined degeneration of the spinal cord huntingtons disease progressive multifocal leukoencephalopathy postinfectious encephalomyelitis

Explanation:

Subacute combined degeneration of the spinal cord is due to vitamin - B12 deficiency and involves axonal and myelin damage. Progressive multifocal leukoencephalopathy and post - infectious encephalomyelitis are demyelinating diseases. Huntington's disease is a neurodegenerative disorder caused by a CAG trinucleotide repeat expansion in the huntingtin gene, and its main pathologic process is not demyelination but neuronal loss and atrophy in the basal ganglia and cerebral cortex.

Answer:

B. Huntington's Disease