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まえがき
重金属の中毒症のうち,鉛や水銀によるものは比較的多くみられるが,慢性マンガン中毒症は稀な疾患とされている。
本疾患は,1837年Couperによつて最初に報告されたが,本邦に於ては三浦1),佐藤2),越智3),鎌田4),常告5),西野6),芦沢7),大江8),北岡9),稲田10)11)12),石倉13),林14),斉藤15),川村30),太田13)等による報告がみられる。
Okamoto and Abe report a case of maga-nese toxicosis. The patient a man, aged 44, complained of severe back pain, paralysis of both upper and lower extremeties, vertigo and tremor. Disturbances were met with in ambulation and speech:inability to progress backward or sidewise:discloration of gingival mucons membrane to a considerable degree and chronic inflammatory signs were mani-fested in the larynx. No change was noted in the hearing tests but downward vertical ny-stagmus was recognized:such a nystagmus showed an increase in its excursions by tur-ning test and a prolongation by caloric test: no difference was noted in the reaction of the left and right eye.
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