In addition, I found many eosinophilic inclusion bodies in small neurons of the deeper layers of the cerebral cortex. Then, I wondered what these bodies were. Prior MI-503 price to that time, it was thought that Lewy bodies only rarely occurred in the cerebral cortex. Thereafter, I also found many similar cortical eosinophilic bodies in the brain of another patient2 with similar clinical symptoms. I became interested in these cortical eosinophilic bodies. Morphologically these bodies were similar to, but somewhat different from, brain stem Lewy

bodies. Therefore, I could not identify these cortical eosinophilic bodies as Lewy bodies. Based on histochemical and electron microscopic examinations, I demonstrated that these cortical eosinophilic bodies were cortical Lewy bodies. In 1978, we reported a second paper2“Lewy bodies in cerebral cortex” in Acta Neuropathologica, based on our three cases including the first case. In that report, the close relationship between cortical Lewy bodies and neuronal cell death was for the first time

indicated by showing six developmental stages of cortical Lewy bodies. In addition, we pointed out for the first time that learn more the amygdala and claustrum are also predilection sites for Lewy bodies. Following these papers, some similar cases were reported in Japan. In the USA, a Japanese neuropathologist, Okazaki, and his colleagues5 reported two similar American autopsied cases without Alzheimer pathology Urocanase in 1961, but these cases had not received attention until our citation of their paper in our first paper.1 In addition, Forno et al.6 also reported a similar American case in 1978. In 1979, we reported3 two similar German cases when I was at the Max-Planck Institute of Psychiatry in Munich. These were the first DLBD cases reported in Europe. In 1984, we proposed4 the term “diffuse Lewy body disease (DLBD)” based on our 11 autopsies

including Japanese, German and Austrian cases. As we proposed it in 1980, 11 DLBD was thought to be a type of “Lewy body disease”. We classified Lewy body disease into three types: brainstem type, traditional type and diffuse type. The diffuse type is now considered DLBD, while the brain stem type is considered PD. After our proposal of DLBD in 1984, this disease received more attention among European and American researchers. In 1990, I reviewed 37 autopsied DLBD cases reported in Japan.9 Then I classified these cases into two forms: a common form with a more or less Alzheimer pathology, and a pure form without such findings. In addition, I pointed out that the clinical features differed between the two forms. In the common form, all cases showed presenile or senile onset, and the chief clinical feature was progressive dementia, followed by parkinsonism in 70% of cases, while in the pure form most cases showed early onset and the chief clinical symptom was parkinsonism, followed by dementia.