Congenital Cholesteatomata With Other Anomalies

Congenital (primary) cholesteatomata may arise in the petrous apex, mastoid, middle ear, or external auditory canal.

Histological studies of the temporal bones of a 20-year-old man with bilateral combined deafness show bilateral congenital cholesteatomata of the middle ears associated with salivary choristomata and other anomalies of the middle and inner ears.