MIDBRAIN DEAFNESS

Abstract
The following case of tumor of the midbrain is reported because it presented an unusual symptom, namely, sudden and complete deafness. Not many reports of this condition have appeared in the literature, and since the disorder is uncommon enough to be overlooked, even in the presence of other localizing signs of a lesion of the midbrain, the report of a single case seems warranted. Neighborhood symptoms, such as hypersomnolence, mental changes and palatal paralysis, were also present, but were not sufficiently outstanding to require special mention, particularly since their significance is well recognized. REPORT OF A CASE History. —C. R., a white man aged 55, was admitted to the Mount Sinai Hospital on Oct. 11, 1940 with a history of impairment of hearing of eighteen months' duration. At the time of the onset it was said that he complained of weakness and pain in the legs. There had also been

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