neuropathological changes observed in common were the simple degeneration of the substantia nigra , globus pallidus and subthalamic nucleus , spheroid bodies in the reticular zone of the substantia nigra , intracytoplasmic deposits of an eosinophilic substance in the nerve cells of the locus caeruleus and a swelling of nerve cells of the thalamus and brainstem nuclei .
C0023951
locus caeruleus
C0006121
brainstem