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Association of HRCT findings with intra-operative findings with respect to extent of disease
| Extent of Disease | HRCT | Intraoperative |
|---|---|---|
| N =52 | N =52 | |
| Prussaks space | 6 | 1 |
| External auditory canal | 1 | 0 |
| Epitympanum | 52 | 50 |
| Mesotympanum | 41 | 26 |
| Hypotympanum | 29 | 13 |
| Protympanum | 5 | 4 |
| Sinus tympani | 5 | 3 |
| Aditus | 41 | 41 |
| Antrum | 44 | 39 |
| Mastoid | 10 | 4 |
| Facial Recess | 17 | 15 |
