A practical treatise on the diseases of the ear including the anatomy of the organ . March 18th—Touched polypus with nitric acid. March 21st—Much better, touched with argent nit. mit. It should be said that the usual point of origin of auralpolypi, is the cavity of the tympanum. They may arise fromthe auditory canal, but if so, they are the result of suppuration,that has been prolonged, or that has been augmented by the useof poultices, and which have rapidly broken down the integu-ment of the canal, and rendered it more like its neighbor, themucous membrane of the tympanic cavity. Polypi and
A practical treatise on the diseases of the ear including the anatomy of the organ . March 18th—Touched polypus with nitric acid. March 21st—Much better, touched with argent nit. mit. It should be said that the usual point of origin of auralpolypi, is the cavity of the tympanum. They may arise fromthe auditory canal, but if so, they are the result of suppuration,that has been prolonged, or that has been augmented by the useof poultices, and which have rapidly broken down the integu-ment of the canal, and rendered it more like its neighbor, themucous membrane of the tympanic cavity. Polypi and granula-tions often, however, have their seat in the canal, but they areusually accompanied by the same growth in the deeper parts,when the whole character of the tissue lining the canal hasbeen changed by an ulcerative process, extending from thetympanic cavity. As will be seen by comparing the illustra-tions of Case I., which arose from the auditory canal, withthose that sprang from the cavity of the tympanum, the onlyessential difference is that the epithelium is Section of Aural Polypus, Case II. A. Epithelium. B. Substance of polypus, made up of a mass of round cells about the size of white blood corpuscles. C, C. Capillary vessels, containing white blood corpuscles. Case II.—Mary Jane N., set. 13. January 10, 1872. Manhattan Eye andEar Hospital. Otitis media suppurativa, with polypus in right ear. Polypusnearly fills auditory canal. Discharge from both ears from scarlet fever since achild. Large perforations in menibranae tympani. Polypus removed withsnare. 392 AUKAL POLYPI. Fig. 77.
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