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  • Title: [Paralayrinthine cholesteatoma and tympanoplasty (author's transl)].
    Author: Wullstein HL.
    Journal: HNO; 1977 Nov; 25(11):389-92. PubMed ID: 924818.
    Abstract:
    Closed tympanoplasty techniques greatly increase the risk of recurrent cholesteatoma. This is obvious as many surgeons using these methods insist on a necessary obligatory control operation as a "second look". In this paper cholesteatomata are classified according to their tendency to extend within the petrous pyramid and the subsequent danger of invading semicircular canals, cochlea or cranial fossae. The predisposition to this type of growth is present in the well defined "medial" type of epitympanic cholesteatoma, and more in the anteriorly than the posteriorly placed ones. As infection becomes less prominent in countries with advanced medical services, especially otology, the cholesteatoma hidden behind a small dry epitympanic perforation and those even with no perforation termed "hidden primary cholesteatoma" become more frequent. They cause their own special symptomatology, not infrequently a slowly progressive facial palsy. Every cholesteatoma requires mandatory prophylactic surgery. This means the complete exposure of the danger area, the epitympanum, and nowadays the possibility of the syncronous complete reconstruction of a normal middle ear and external canal, i.e. osteoplastic epitympanotomy.
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