Abstract
We compared the finding of preoperative high resolution CT of 11 cases of carcinoma of the external auditory canal and middle ear with postoperative pathologic findings of the involvement area.
In 4 cases the histopathological findings of surgical specimens were compatible with the preoperative HRCT. In 3 cases tumor was limited in the external auditory canal without chronic otitis media, one advance case had chronic otitis media.
It was concluded that the preoperative determination of the extent of spread of tumor must be made by accurate pathological findings by the exploratory tympanotomy, especial in casca with chronic otitis media.