[Histologic study of cholesteatoma in surgically treated otorrhea]

The purpose of this paper is to study 33 cholesteatomatous patients with surgical treatment. We report individual and predisposal factors concerning these patients, as well as their clinical and radiological data. Histologic study these cholesteatoma was carried after surgical removal, using conventional staining (H-E, A-B, fluorescence, etc.) and a new technique to observation the namely EPU (Epithelial Proliferative Unit).