Parkinsonism following encephalitis, historically seen as a sequella of encephalitis lethargica (Von Economo Encephalitis). The early age of onset, the rapid progression of symptoms followed by stabilization, and the presence of a variety of other neurological disorders (e.g., sociopathic behavior; TICS; MUSCLE SPASMS; oculogyric crises; hyperphagia; and bizarre movements) distinguish this condition from primary PARKINSON DISEASE. Pathologic features include neuronal loss and gliosis concentrated in the MESENCEPHALON; SUBTHALAMUS; and HYPOTHALAMUS. (From Adams et al., Principles of Neurology, 6th ed, p754)
Also Known As:
Postencephalitic Parkinsonism; Parkinson Disease, Postencephalitic; Parkinson Disease, Post-Encephalitic; Parkinsonian Syndrome, Postencephalitis; Parkinsonism, Postencephalitic; Post-Encephalitic Parkinson Disease; Postencephalitic Economo-Type Parkinsonism; Viral Meningoencephalitic Parkinsonism; von Economo Encephalitis Type Parkinsonism; Economo-Type Parkinsonism, Postencephalitic; Meningoencephalitic Parkinsonism, Viral; Parkinson Disease, Post Encephalitic; Parkinsonism, Postencephalitic Economo-Type; Parkinsonisms, Viral Meningoencephalitic; Post Encephalitic Parkinson Disease; Postencephalitic Economo Type Parkinsonism; Postencephalitis Parkinsonian Syndrome; Encephalitis Lethargica Type Parkinsonism; Parkinsonism, Viral Meningoencephalitic