The title of this paper naturally eliminates from discussion secondary cholesteatoma of the sinuses. Secondary cholesteatoma of the middle ear and mastoid, which is seen rather frequently, is likewise not under discussion in this paper.
REPORT OF CASE
History.—Mr. A., aged 40, single, a farmer, first presented himself for examination on Feb. 9, 1916. The history was related by the father, because the patient's mentality was substandard. His sister volunteered the information that he had always been peculiar, and that for a few years previously he had been insane.
He was struck in the right eye with a piece of steel at the age of 20. Since that time this eye had been gradually assuming more and more prominence. He did not believe that the steel entered either the eyeball or the orbit. This history of injury is of doubtful value. At times the eyeball almost protruded between