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Surgical techniques used for congenital cholesteatoma removal according to stage
| Stage | Cholesteatoma removal | Cholesteatoma removal+tympanoplasty (ossiculoplasty) | Cholesteatoma removal+mastoidectomy | Mastoidectomy+tympanoplasty (ossiculoplasty) |
|---|---|---|---|---|
| I | 11 | 4 | 1 | 0 |
| II | 2 | 2 | 0 | 0 |
| III | 2 | 7 | 0 | 2 |
| IV | 0 | 0 | 0 | 7 |
