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THE METHOD of cocainizing the middle ear that I am about to describe can be used by the otolaryngologist in his office just as he uses the topical application of cocaine to anesthetize the mucous membrane of the nose there.
A brief review of the histology of the mucous membrane of the eustachian tube and middle ear will show the basis of my method. The eustachian tube is lined with ciliated columnar epithelium which is similar to, and continuous with, the epithelium of the nasopharynx. The mucosa of the eustachian tube merges with the mucosa of the middle ear. The epithelium of the latter on the floor and the walls near the orifice of the tube is of the ciliated low columnar type. Further in, the epithelium becomes squamous in character. The continuity of the mucous membrane of the middle ear and eustachian tube with, and its resemblance histologically and
UNGER M. COCAINIZING THE TYMPANUM VIA THE EUSTACHIAN TUBE: A New Method. Arch Otolaryngol. 1947;45(6):693–696. doi:10.1001/archotol.1947.00690010710009
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