Rabies-Like Neuronal Inclusions Associated with a Neoplastic Reticulosis in a Dog

Neoplastic reticulosis of the central nervous system was associated with intracytoplasmic inclusion bodies in Purkinje cells and neurons of several nuclei. These eosinophilic inclusion bodies were from round to crescentic and had a different location, structure, and cytochemistry than Negri bodies and inclusions of other canine neurologic diseases. The inclusions represent an aberration of rough endoplasmic reticulum and resemble the cytoplasmic laminar bodies of the lateral geniculate neurons of the cat.