FDG positron emission tomography in diffuse Lewy body disease: a case report.

Lewy body disease is a clinicopathologic condition that includes Parkinson's disease at one end and diffuse Lewy body disease at the other hand. The latter is often associated with progressive cognitive deterioration, levodopa-responsive parkinsonism, fluctuations of cognitive and motor functions, and visual and auditory hallucinations. In addition, it can be a familial disease. Clinical and positron emission tomographic findings are described in a patient with atypical dementia and movement disorder and a pathologically proved diagnosis of diffuse Lewy body disease.