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Clinical and pathophysiological aspects of fatty liver of unknown etiology in modern Japan.

Recently, fatty liver of unknown etiology has been increasing in number among relatively younger persons in Japan. The tendency is very likely related to drastic reformation of the standard of living with the height of economic prosperity due to industrial advances in Japan at present. On the basis of our own 392 patients with fatty liver of unknown etiology, in whom fatty liver could be confirmed laparoscopically and bioptically, clinical and pathophysiological aspects of fatty liver of unknown etiology have been into consideration. The clinical outline of the disease was stated in this paper.