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Washington University Experience | PRION DISEASES | Prion Diseases | 15A4 CJD (Case 15) 4 extended survival
Serial sections of the brainstem and cerebellum at 3-4 mm intervals revealed the aqueduct of Sylvius and fourth ventricle to be patent, of normal size, and lined by smooth glistening ependyma . The loci coerulei and substantia nigra are distinct and normally pigmented.