The authors studied operative findings of aural cholesteatomas and classified the pathogenesis of the cholesteatoma into two types, one that originated from the pars tensa and the other from pars flaccida.
Recent experience with an extensive aural cholesteatoma in a child revealed such pathology that could not be explained by either type. This case appeared to be an infected case of a congenital cholesteatoma.
The authors report the operative findings in this case and discussed the various pathogeneses of aural cholestertoma.