1. Paraneoplastic Cerebellar Degeneration
Brainstem encephalitis, cerebellar degeneration. Paraneoplastic cerebellar degenerations are disorders of the cerebellum, the part of the brain responsible for coordination, which are associated with tumors (neoplasms) They arise when tumors...
http://www.tchain.com/otoneurology/disorders/central/pcd.htm

2. MRI of Hippocampus in Incipient Alzheimer's Disease
1992) Infections or inflammations, such as Herpes simplex encephalitis and paraneoplastic limbic encephalitis, that may cause amnesia or dementia by affecting the temporal lobe may also influence the hippocampal volume (Lacomis et al.
http://www.uku.fi/neuro/37the.htm

3. MedlinePlus: Encephalitis
Encephalitis Encephalitis is an inflammation of the brain. Limbic encephalitis as a precipitating event in adult-onset temporal lobe. Fortunately, encephalitis is uncommon in the United States. (Nemours Foundation) Meningitis and Encephalitis.
http://www.nlm.nih.gov/medlineplus/encephalitis.html