Overview of number of ears with middle and/or inner ear abnormalities reported by Loos et al16 and in the present study
| Malformation | Loos et al16; No. of Ears (%) (Total, 22 Ears) | Present study; No. of Ears (%) (Total, 52 Ears) | Total No. of Ears (%) (Total, 74 Ears) |
|---|---|---|---|
| Malleus, incus, or stapes abnormalitiesa | 2 (9) | 3 (6b) | 5 (7c) |
| Dense stapes superstructure | 10 (45) | 18 (36b) | 28 (39c) |
| LSCC: single cavity | 4 (18) | 15 (29) | 19 (26) |
| Wide vestibule/small bony island in LSCC | 14 (64) | 17 (33) | 31 (42) |
| IP type II | 12 (55) | 12 (23) | 24 (32) |
| Carotid canal dehiscence | 2 (9) | 5 (10b) | 7 (10c) |
Note:—IP indicates incomplete partition.
↵a Other than a dense stapes superstructure.
↵b Calculated from a total of 50 ears; bone structures in 2 ears in the present study could not be assessed on MRI.
↵c Calculated from a total of 72 ears; bone structures in 2 ears in the present study could not be assessed on MRI.